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Finding the Fourth Proportional to 484,356.20, 726,504.78 and 180,691.88

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Solution

The fourth proportional to 484,356.20, 726,504.78 and 180,691.88 is: 271,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,356.20 : 726,504.78 = 180,691.88 : x
  2. Step 2: Convert to fraction form
    484,356.20/726,504.78 = 180,691.88/x
  3. Step 3: Cross multiply
    484,356.20x = 726,504.78 × 180,691.88
  4. Step 4: Simplify right side
    484,356.20x = 131,273,514,527.19
  5. Step 5: Solve for x
    x = 131,273,514,527.19/484,356.20
  6. Step 6: Final answer
    x = 271,026.81

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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.