Rochester, New York (43.2°N, 77.6°w), and Richmond, Virinia (37.5°N,77.5W), have approximately the same longitude, which means that they are roughly due north-south of each other. Use the difference in latitude to approximate the distance between the cities. Assume that the Earth is approximately spherical with radius 3960 mi. Round intermediate calculations to 5 decimal places and round your answer to the nearest mile.