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Finding the Fourth Proportional to 539,618.92, 744,654.60 and 297,896.31

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Solution

The fourth proportional to 539,618.92, 744,654.60 and 297,896.31 is: 411,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,618.92 : 744,654.60 = 297,896.31 : x
  2. Step 2: Convert to fraction form
    539,618.92/744,654.60 = 297,896.31/x
  3. Step 3: Cross multiply
    539,618.92x = 744,654.60 × 297,896.31
  4. Step 4: Simplify right side
    539,618.92x = 221,829,857,564.53
  5. Step 5: Solve for x
    x = 221,829,857,564.53/539,618.92
  6. Step 6: Final answer
    x = 411,086.14

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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.