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Finding the Fourth Proportional to 376,679.38, 519,817.90 and 206,924.44

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Solution

The fourth proportional to 376,679.38, 519,817.90 and 206,924.44 is: 285,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,679.38 : 519,817.90 = 206,924.44 : x
  2. Step 2: Convert to fraction form
    376,679.38/519,817.90 = 206,924.44/x
  3. Step 3: Cross multiply
    376,679.38x = 519,817.90 × 206,924.44
  4. Step 4: Simplify right side
    376,679.38x = 107,563,027,859.48
  5. Step 5: Solve for x
    x = 107,563,027,859.48/376,679.38
  6. Step 6: Final answer
    x = 285,555.92

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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.