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Finding the Fourth Proportional to 521,737.40, 732,007 and 521,737.40

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Solution

The fourth proportional to 521,737.40, 732,007 and 521,737.40 is: 732,007

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,737.40 : 732,007 = 521,737.40 : x
  2. Step 2: Convert to fraction form
    521,737.40/732,007 = 521,737.40/x
  3. Step 3: Cross multiply
    521,737.40x = 732,007 × 521,737.40
  4. Step 4: Simplify right side
    521,737.40x = 381,915,428,961.80
  5. Step 5: Solve for x
    x = 381,915,428,961.80/521,737.40
  6. Step 6: Final answer
    x = 732,007

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.