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Finding the Fourth Proportional to 468,691.88, 703,285.68 and 255,613.28

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Solution

The fourth proportional to 468,691.88, 703,285.68 and 255,613.28 is: 383,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,691.88 : 703,285.68 = 255,613.28 : x
  2. Step 2: Convert to fraction form
    468,691.88/703,285.68 = 255,613.28/x
  3. Step 3: Cross multiply
    468,691.88x = 703,285.68 × 255,613.28
  4. Step 4: Simplify right side
    468,691.88x = 179,769,159,441.83
  5. Step 5: Solve for x
    x = 179,769,159,441.83/468,691.88
  6. Step 6: Final answer
    x = 383,555.10

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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.