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Finding the Fourth Proportional to 352,711.59, 486,410.45 and 272,011.29

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Solution

The fourth proportional to 352,711.59, 486,410.45 and 272,011.29 is: 375,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,711.59 : 486,410.45 = 272,011.29 : x
  2. Step 2: Convert to fraction form
    352,711.59/486,410.45 = 272,011.29/x
  3. Step 3: Cross multiply
    352,711.59x = 486,410.45 × 272,011.29
  4. Step 4: Simplify right side
    352,711.59x = 132,309,132,613.92
  5. Step 5: Solve for x
    x = 132,309,132,613.92/352,711.59
  6. Step 6: Final answer
    x = 375,119.89

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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.