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Finding the Fourth Proportional to 1,195.20, 1,793.17 and 759.17

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Solution

The fourth proportional to 1,195.20, 1,793.17 and 759.17 is: 1,138.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.20 : 1,793.17 = 759.17 : x
  2. Step 2: Convert to fraction form
    1,195.20/1,793.17 = 759.17/x
  3. Step 3: Cross multiply
    1,195.20x = 1,793.17 × 759.17
  4. Step 4: Simplify right side
    1,195.20x = 1,361,311.90
  5. Step 5: Solve for x
    x = 1,361,311.90/1,195.20
  6. Step 6: Final answer
    x = 1,138.99

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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.