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Finding the Fourth Proportional to 392,016.18, 541,005.93 and 230,978.55

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Solution

The fourth proportional to 392,016.18, 541,005.93 and 230,978.55 is: 318,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,016.18 : 541,005.93 = 230,978.55 : x
  2. Step 2: Convert to fraction form
    392,016.18/541,005.93 = 230,978.55/x
  3. Step 3: Cross multiply
    392,016.18x = 541,005.93 × 230,978.55
  4. Step 4: Simplify right side
    392,016.18x = 124,960,765,252.80
  5. Step 5: Solve for x
    x = 124,960,765,252.80/392,016.18
  6. Step 6: Final answer
    x = 318,764.31

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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.