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Finding the Fourth Proportional to 626,772.40, 938,603.40 and 502,356.40

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Solution

The fourth proportional to 626,772.40, 938,603.40 and 502,356.40 is: 752,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,772.40 : 938,603.40 = 502,356.40 : x
  2. Step 2: Convert to fraction form
    626,772.40/938,603.40 = 502,356.40/x
  3. Step 3: Cross multiply
    626,772.40x = 938,603.40 × 502,356.40
  4. Step 4: Simplify right side
    626,772.40x = 471,513,425,051.76
  5. Step 5: Solve for x
    x = 471,513,425,051.76/626,772.40
  6. Step 6: Final answer
    x = 752,288.11

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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.