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Finding the Fourth Proportional to 511,168.92, 766,753.28 and 137,191.92

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Solution

The fourth proportional to 511,168.92, 766,753.28 and 137,191.92 is: 205,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,168.92 : 766,753.28 = 137,191.92 : x
  2. Step 2: Convert to fraction form
    511,168.92/766,753.28 = 137,191.92/x
  3. Step 3: Cross multiply
    511,168.92x = 766,753.28 × 137,191.92
  4. Step 4: Simplify right side
    511,168.92x = 105,192,354,649.50
  5. Step 5: Solve for x
    x = 105,192,354,649.50/511,168.92
  6. Step 6: Final answer
    x = 205,787.85

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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.