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Finding the Fourth Proportional to 417,079.29, 625,706.42 and 180,455.61

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Solution

The fourth proportional to 417,079.29, 625,706.42 and 180,455.61 is: 270,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,079.29 : 625,706.42 = 180,455.61 : x
  2. Step 2: Convert to fraction form
    417,079.29/625,706.42 = 180,455.61/x
  3. Step 3: Cross multiply
    417,079.29x = 625,706.42 × 180,455.61
  4. Step 4: Simplify right side
    417,079.29x = 112,912,232,799.74
  5. Step 5: Solve for x
    x = 112,912,232,799.74/417,079.29
  6. Step 6: Final answer
    x = 270,721.26

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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.