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Finding the Fourth Proportional to 431,446.80, 647,461.80 and 241,906.80

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Solution

The fourth proportional to 431,446.80, 647,461.80 and 241,906.80 is: 363,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,446.80 : 647,461.80 = 241,906.80 : x
  2. Step 2: Convert to fraction form
    431,446.80/647,461.80 = 241,906.80/x
  3. Step 3: Cross multiply
    431,446.80x = 647,461.80 × 241,906.80
  4. Step 4: Simplify right side
    431,446.80x = 156,625,412,160.24
  5. Step 5: Solve for x
    x = 156,625,412,160.24/431,446.80
  6. Step 6: Final answer
    x = 363,023.70

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1.5x scale

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.