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Finding the Fourth Proportional to 652,518,495.40, 978,777,743.10 and 627,436,229.80

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Solution

The fourth proportional to 652,518,495.40, 978,777,743.10 and 627,436,229.80 is: 941,154,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,518,495.40 : 978,777,743.10 = 627,436,229.80 : x
  2. Step 2: Convert to fraction form
    652,518,495.40/978,777,743.10 = 627,436,229.80/x
  3. Step 3: Cross multiply
    652,518,495.40x = 978,777,743.10 × 627,436,229.80
  4. Step 4: Simplify right side
    652,518,495.40x = 614,120,616,942,816,896
  5. Step 5: Solve for x
    x = 614,120,616,942,816,896/652,518,495.40
  6. Step 6: Final answer
    x = 941,154,344.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.