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Finding the Fourth Proportional to 443,998.26, 665,939.68 and 177,761.39

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Solution

The fourth proportional to 443,998.26, 665,939.68 and 177,761.39 is: 266,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,998.26 : 665,939.68 = 177,761.39 : x
  2. Step 2: Convert to fraction form
    443,998.26/665,939.68 = 177,761.39/x
  3. Step 3: Cross multiply
    443,998.26x = 665,939.68 × 177,761.39
  4. Step 4: Simplify right side
    443,998.26x = 118,378,359,398.85
  5. Step 5: Solve for x
    x = 118,378,359,398.85/443,998.26
  6. Step 6: Final answer
    x = 266,618.97

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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.