53. A vessel steams 640 miles on course 047°T from LAT 34°45'N, LONG 140°00'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing?

The arrival position is calculated as LAT 4201′N, LONG 14957′E by applying mid-latitude sailing formulas to the given distance and course, accurately accounting for the latitude and longitude changes based on the northeastward direction.