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Ancient observations

Problem

The distance between Earth and Mars varies depending on where they are in their respective orbits. The maximum distance between them is just over 7.35 times larger than their closest distance.
If the shortest distance between them is 54.6 million kilometers, how far is the largest distance between Earth and Mars? (Enter your answer in millions of kilometers, rounded to the nearest tenth.)
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4