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Finding the Fourth Proportional to 499,267.70, 748,901.55 and 331,306.10

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Solution

The fourth proportional to 499,267.70, 748,901.55 and 331,306.10 is: 496,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,267.70 : 748,901.55 = 331,306.10 : x
  2. Step 2: Convert to fraction form
    499,267.70/748,901.55 = 331,306.10/x
  3. Step 3: Cross multiply
    499,267.70x = 748,901.55 × 331,306.10
  4. Step 4: Simplify right side
    499,267.70x = 248,115,651,814.46
  5. Step 5: Solve for x
    x = 248,115,651,814.46/499,267.70
  6. Step 6: Final answer
    x = 496,959.15

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Similar ratio
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1.5x scale

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.