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Finding the Fourth Proportional to 379,046.00, 523,079.49 and 206,963.42

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Solution

The fourth proportional to 379,046.00, 523,079.49 and 206,963.42 is: 285,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,046.00 : 523,079.49 = 206,963.42 : x
  2. Step 2: Convert to fraction form
    379,046.00/523,079.49 = 206,963.42/x
  3. Step 3: Cross multiply
    379,046.00x = 523,079.49 × 206,963.42
  4. Step 4: Simplify right side
    379,046.00x = 108,258,320,121.12
  5. Step 5: Solve for x
    x = 108,258,320,121.12/379,046.00
  6. Step 6: Final answer
    x = 285,607.34

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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.