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Finding the Fourth Proportional to 516,712.26, 775,098.56 and 156,894.85

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Solution

The fourth proportional to 516,712.26, 775,098.56 and 156,894.85 is: 235,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,712.26 : 775,098.56 = 156,894.85 : x
  2. Step 2: Convert to fraction form
    516,712.26/775,098.56 = 156,894.85/x
  3. Step 3: Cross multiply
    516,712.26x = 775,098.56 × 156,894.85
  4. Step 4: Simplify right side
    516,712.26x = 121,608,973,667.53
  5. Step 5: Solve for x
    x = 121,608,973,667.53/516,712.26
  6. Step 6: Final answer
    x = 235,351.44

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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.