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Finding the Fourth Proportional to 475,891.20, 656,763.24 and 271,972.20

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Solution

The fourth proportional to 475,891.20, 656,763.24 and 271,972.20 is: 375,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,891.20 : 656,763.24 = 271,972.20 : x
  2. Step 2: Convert to fraction form
    475,891.20/656,763.24 = 271,972.20/x
  3. Step 3: Cross multiply
    475,891.20x = 656,763.24 × 271,972.20
  4. Step 4: Simplify right side
    475,891.20x = 178,621,343,261.93
  5. Step 5: Solve for x
    x = 178,621,343,261.93/475,891.20
  6. Step 6: Final answer
    x = 375,340.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.