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Finding the Fourth Proportional to 376,512.72, 519,588.18 and 206,757.60

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Solution

The fourth proportional to 376,512.72, 519,588.18 and 206,757.60 is: 285,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,512.72 : 519,588.18 = 206,757.60 : x
  2. Step 2: Convert to fraction form
    376,512.72/519,588.18 = 206,757.60/x
  3. Step 3: Cross multiply
    376,512.72x = 519,588.18 × 206,757.60
  4. Step 4: Simplify right side
    376,512.72x = 107,428,805,085.17
  5. Step 5: Solve for x
    x = 107,428,805,085.17/376,512.72
  6. Step 6: Final answer
    x = 285,325.83

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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.