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Finding the Fourth Proportional to 732,403.40, 1,098,605.10 and 727,737.80

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Solution

The fourth proportional to 732,403.40, 1,098,605.10 and 727,737.80 is: 1,091,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,403.40 : 1,098,605.10 = 727,737.80 : x
  2. Step 2: Convert to fraction form
    732,403.40/1,098,605.10 = 727,737.80/x
  3. Step 3: Cross multiply
    732,403.40x = 1,098,605.10 × 727,737.80
  4. Step 4: Simplify right side
    732,403.40x = 799,496,458,542.78
  5. Step 5: Solve for x
    x = 799,496,458,542.78/732,403.40
  6. Step 6: Final answer
    x = 1,091,606.70

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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.