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Finding the Fourth Proportional to 521,951.13, 782,926.70 and 127,967.13

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Solution

The fourth proportional to 521,951.13, 782,926.70 and 127,967.13 is: 191,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,951.13 : 782,926.70 = 127,967.13 : x
  2. Step 2: Convert to fraction form
    521,951.13/782,926.70 = 127,967.13/x
  3. Step 3: Cross multiply
    521,951.13x = 782,926.70 × 127,967.13
  4. Step 4: Simplify right side
    521,951.13x = 100,188,882,799.37
  5. Step 5: Solve for x
    x = 100,188,882,799.37/521,951.13
  6. Step 6: Final answer
    x = 191,950.70

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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.