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Finding the Fourth Proportional to 484,171.52, 726,251.04 and 217,743.68

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Solution

The fourth proportional to 484,171.52, 726,251.04 and 217,743.68 is: 326,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,171.52 : 726,251.04 = 217,743.68 : x
  2. Step 2: Convert to fraction form
    484,171.52/726,251.04 = 217,743.68/x
  3. Step 3: Cross multiply
    484,171.52x = 726,251.04 × 217,743.68
  4. Step 4: Simplify right side
    484,171.52x = 158,136,574,053.43
  5. Step 5: Solve for x
    x = 158,136,574,053.43/484,171.52
  6. Step 6: Final answer
    x = 326,612.71

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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.