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Finding the Fourth Proportional to 416,910.80, 625,657.80 and 180,423.20

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Solution

The fourth proportional to 416,910.80, 625,657.80 and 180,423.20 is: 270,760.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,910.80 : 625,657.80 = 180,423.20 : x
  2. Step 2: Convert to fraction form
    416,910.80/625,657.80 = 180,423.20/x
  3. Step 3: Cross multiply
    416,910.80x = 625,657.80 × 180,423.20
  4. Step 4: Simplify right side
    416,910.80x = 112,883,182,380.96
  5. Step 5: Solve for x
    x = 112,883,182,380.96/416,910.80
  6. Step 6: Final answer
    x = 270,760.99

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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.