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Finding the Fourth Proportional to 539,530.28, 744,551.82 and 297,812.91

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Solution

The fourth proportional to 539,530.28, 744,551.82 and 297,812.91 is: 410,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,530.28 : 744,551.82 = 297,812.91 : x
  2. Step 2: Convert to fraction form
    539,530.28/744,551.82 = 297,812.91/x
  3. Step 3: Cross multiply
    539,530.28x = 744,551.82 × 297,812.91
  4. Step 4: Simplify right side
    539,530.28x = 221,737,144,160.00
  5. Step 5: Solve for x
    x = 221,737,144,160.00/539,530.28
  6. Step 6: Final answer
    x = 410,981.83

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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.