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Finding the Fourth Proportional to 627,445.27, 866,000.19 and 372,747.25

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Solution

The fourth proportional to 627,445.27, 866,000.19 and 372,747.25 is: 514,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,445.27 : 866,000.19 = 372,747.25 : x
  2. Step 2: Convert to fraction form
    627,445.27/866,000.19 = 372,747.25/x
  3. Step 3: Cross multiply
    627,445.27x = 866,000.19 × 372,747.25
  4. Step 4: Simplify right side
    627,445.27x = 322,799,189,321.98
  5. Step 5: Solve for x
    x = 322,799,189,321.98/627,445.27
  6. Step 6: Final answer
    x = 514,465.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.