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Finding the Fourth Proportional to 451,104.52, 676,444.83 and 261,618.70

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Solution

The fourth proportional to 451,104.52, 676,444.83 and 261,618.70 is: 392,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,104.52 : 676,444.83 = 261,618.70 : x
  2. Step 2: Convert to fraction form
    451,104.52/676,444.83 = 261,618.70/x
  3. Step 3: Cross multiply
    451,104.52x = 676,444.83 × 261,618.70
  4. Step 4: Simplify right side
    451,104.52x = 176,970,617,046.32
  5. Step 5: Solve for x
    x = 176,970,617,046.32/451,104.52
  6. Step 6: Final answer
    x = 392,305.13

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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.