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Finding the Fourth Proportional to 398,169.20, 598,175.40 and 273,753.20

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Solution

The fourth proportional to 398,169.20, 598,175.40 and 273,753.20 is: 411,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,169.20 : 598,175.40 = 273,753.20 : x
  2. Step 2: Convert to fraction form
    398,169.20/598,175.40 = 273,753.20/x
  3. Step 3: Cross multiply
    398,169.20x = 598,175.40 × 273,753.20
  4. Step 4: Simplify right side
    398,169.20x = 163,752,429,911.28
  5. Step 5: Solve for x
    x = 163,752,429,911.28/398,169.20
  6. Step 6: Final answer
    x = 411,263.43

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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.