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Finding the Fourth Proportional to 484,318.67, 726,470.72 and 217,891.04

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Solution

The fourth proportional to 484,318.67, 726,470.72 and 217,891.04 is: 326,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,318.67 : 726,470.72 = 217,891.04 : x
  2. Step 2: Convert to fraction form
    484,318.67/726,470.72 = 217,891.04/x
  3. Step 3: Cross multiply
    484,318.67x = 726,470.72 × 217,891.04
  4. Step 4: Simplify right side
    484,318.67x = 158,291,459,620.89
  5. Step 5: Solve for x
    x = 158,291,459,620.89/484,318.67
  6. Step 6: Final answer
    x = 326,833.28

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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.