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Finding the Fourth Proportional to 437,270.87, 655,961.68 and 170,996.78

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Solution

The fourth proportional to 437,270.87, 655,961.68 and 170,996.78 is: 256,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,270.87 : 655,961.68 = 170,996.78 : x
  2. Step 2: Convert to fraction form
    437,270.87/655,961.68 = 170,996.78/x
  3. Step 3: Cross multiply
    437,270.87x = 655,961.68 × 170,996.78
  4. Step 4: Simplify right side
    437,270.87x = 112,167,337,619.02
  5. Step 5: Solve for x
    x = 112,167,337,619.02/437,270.87
  6. Step 6: Final answer
    x = 256,516.83

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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.