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Finding the Fourth Proportional to 654,191.70, 981,287.55 and 614,793.30

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Solution

The fourth proportional to 654,191.70, 981,287.55 and 614,793.30 is: 922,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,191.70 : 981,287.55 = 614,793.30 : x
  2. Step 2: Convert to fraction form
    654,191.70/981,287.55 = 614,793.30/x
  3. Step 3: Cross multiply
    654,191.70x = 981,287.55 × 614,793.30
  4. Step 4: Simplify right side
    654,191.70x = 603,289,011,113.42
  5. Step 5: Solve for x
    x = 603,289,011,113.42/654,191.70
  6. Step 6: Final answer
    x = 922,189.95

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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.