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Restoration of Lost Corners by Proportionate Measurement
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  Section 1 - Calculate True Bearing and Distance

Look at the sketch to see how we put this together in exaggerated form.






This sketch shows how we arrive at the true line latitude and departures. Here, 40 North plus 2.03 South equals 37.97 North and 1.67 West plus 0.00 East, since no east departures were made, equals 1.67 West. Next calculate the true line bearing and distance.



Using basic trig, this computes to North 2 degrees, 31 minutes West and a distance of 38.01 chains. This is the essential information to describe the location of the correct proportionate corner point.

You now have completed Section 1 of this Unit on proportion measure, double proportionate, or four-way proportionate measure.

At this point in the course, you will have an opportunity to recall and apply what you have learned.

Next, get ready for a review exercise!

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