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Finding the Fourth Proportional to 629,974.55, 944,965.59 and 156,659.92

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Solution

The fourth proportional to 629,974.55, 944,965.59 and 156,659.92 is: 234,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,974.55 : 944,965.59 = 156,659.92 : x
  2. Step 2: Convert to fraction form
    629,974.55/944,965.59 = 156,659.92/x
  3. Step 3: Cross multiply
    629,974.55x = 944,965.59 × 156,659.92
  4. Step 4: Simplify right side
    629,974.55x = 148,038,233,732.15
  5. Step 5: Solve for x
    x = 148,038,233,732.15/629,974.55
  6. Step 6: Final answer
    x = 234,990.82

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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.