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Finding the Fourth Proportional to 517,221.59, 775,861.52 and 157,404.14

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Solution

The fourth proportional to 517,221.59, 775,861.52 and 157,404.14 is: 236,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,221.59 : 775,861.52 = 157,404.14 : x
  2. Step 2: Convert to fraction form
    517,221.59/775,861.52 = 157,404.14/x
  3. Step 3: Cross multiply
    517,221.59x = 775,861.52 × 157,404.14
  4. Step 4: Simplify right side
    517,221.59x = 122,123,814,527.67
  5. Step 5: Solve for x
    x = 122,123,814,527.67/517,221.59
  6. Step 6: Final answer
    x = 236,115.08

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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.