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Finding the Fourth Proportional to 338,781.71, 467,507.00 and 187,892.75

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Solution

The fourth proportional to 338,781.71, 467,507.00 and 187,892.75 is: 259,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,781.71 : 467,507.00 = 187,892.75 : x
  2. Step 2: Convert to fraction form
    338,781.71/467,507.00 = 187,892.75/x
  3. Step 3: Cross multiply
    338,781.71x = 467,507.00 × 187,892.75
  4. Step 4: Simplify right side
    338,781.71x = 87,841,174,006.45
  5. Step 5: Solve for x
    x = 87,841,174,006.45/338,781.71
  6. Step 6: Final answer
    x = 259,285.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.