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Finding the Fourth Proportional to 516,863.30, 775,294.97 and 161,904.96

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Solution

The fourth proportional to 516,863.30, 775,294.97 and 161,904.96 is: 242,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,863.30 : 775,294.97 = 161,904.96 : x
  2. Step 2: Convert to fraction form
    516,863.30/775,294.97 = 161,904.96/x
  3. Step 3: Cross multiply
    516,863.30x = 775,294.97 × 161,904.96
  4. Step 4: Simplify right side
    516,863.30x = 125,524,100,296.53
  5. Step 5: Solve for x
    x = 125,524,100,296.53/516,863.30
  6. Step 6: Final answer
    x = 242,857.45

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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.