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Finding the Fourth Proportional to 614,131.87, 921,197.82 and 239,892.43

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Solution

The fourth proportional to 614,131.87, 921,197.82 and 239,892.43 is: 359,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,131.87 : 921,197.82 = 239,892.43 : x
  2. Step 2: Convert to fraction form
    614,131.87/921,197.82 = 239,892.43/x
  3. Step 3: Cross multiply
    614,131.87x = 921,197.82 × 239,892.43
  4. Step 4: Simplify right side
    614,131.87x = 220,988,383,550.50
  5. Step 5: Solve for x
    x = 220,988,383,550.50/614,131.87
  6. Step 6: Final answer
    x = 359,838.65

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Double scale
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Similar ratio
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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.