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Finding the Fourth Proportional to 376,723.32, 519,885.54 and 206,963.88

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Solution

The fourth proportional to 376,723.32, 519,885.54 and 206,963.88 is: 285,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,723.32 : 519,885.54 = 206,963.88 : x
  2. Step 2: Convert to fraction form
    376,723.32/519,885.54 = 206,963.88/x
  3. Step 3: Cross multiply
    376,723.32x = 519,885.54 × 206,963.88
  4. Step 4: Simplify right side
    376,723.32x = 107,597,528,514.30
  5. Step 5: Solve for x
    x = 107,597,528,514.30/376,723.32
  6. Step 6: Final answer
    x = 285,614.20

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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.