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Finding the Fourth Proportional to 392,361.54, 541,476.73 and 231,223.38

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Solution

The fourth proportional to 392,361.54, 541,476.73 and 231,223.38 is: 319,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,361.54 : 541,476.73 = 231,223.38 : x
  2. Step 2: Convert to fraction form
    392,361.54/541,476.73 = 231,223.38/x
  3. Step 3: Cross multiply
    392,361.54x = 541,476.73 × 231,223.38
  4. Step 4: Simplify right side
    392,361.54x = 125,202,079,701.95
  5. Step 5: Solve for x
    x = 125,202,079,701.95/392,361.54
  6. Step 6: Final answer
    x = 319,098.76

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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.