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Finding the Fourth Proportional to 437,471.20, 656,206.80 and 382,175.20

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Solution

The fourth proportional to 437,471.20, 656,206.80 and 382,175.20 is: 573,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,471.20 : 656,206.80 = 382,175.20 : x
  2. Step 2: Convert to fraction form
    437,471.20/656,206.80 = 382,175.20/x
  3. Step 3: Cross multiply
    437,471.20x = 656,206.80 × 382,175.20
  4. Step 4: Simplify right side
    437,471.20x = 250,785,965,031.36
  5. Step 5: Solve for x
    x = 250,785,965,031.36/437,471.20
  6. Step 6: Final answer
    x = 573,262.80

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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.