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Finding the Fourth Proportional to 408,057.62, 563,108.30 and 226,764.90

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Solution

The fourth proportional to 408,057.62, 563,108.30 and 226,764.90 is: 312,929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,057.62 : 563,108.30 = 226,764.90 : x
  2. Step 2: Convert to fraction form
    408,057.62/563,108.30 = 226,764.90/x
  3. Step 3: Cross multiply
    408,057.62x = 563,108.30 × 226,764.90
  4. Step 4: Simplify right side
    408,057.62x = 127,693,197,338.67
  5. Step 5: Solve for x
    x = 127,693,197,338.67/408,057.62
  6. Step 6: Final answer
    x = 312,929.33

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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.