Home / 644,084.20-966,126.30-394,906.60

Finding the Fourth Proportional to 644,084.20, 966,126.30 and 394,906.60

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Solution

The fourth proportional to 644,084.20, 966,126.30 and 394,906.60 is: 592,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,084.20 : 966,126.30 = 394,906.60 : x
  2. Step 2: Convert to fraction form
    644,084.20/966,126.30 = 394,906.60/x
  3. Step 3: Cross multiply
    644,084.20x = 966,126.30 × 394,906.60
  4. Step 4: Simplify right side
    644,084.20x = 381,529,652,303.58
  5. Step 5: Solve for x
    x = 381,529,652,303.58/644,084.20
  6. Step 6: Final answer
    x = 592,359.90

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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.