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Finding the Fourth Proportional to 392,503.47, 541,725.48 and 231,349.11

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Solution

The fourth proportional to 392,503.47, 541,725.48 and 231,349.11 is: 319,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,503.47 : 541,725.48 = 231,349.11 : x
  2. Step 2: Convert to fraction form
    392,503.47/541,725.48 = 231,349.11/x
  3. Step 3: Cross multiply
    392,503.47x = 541,725.48 × 231,349.11
  4. Step 4: Simplify right side
    392,503.47x = 125,327,707,662.32
  5. Step 5: Solve for x
    x = 125,327,707,662.32/392,503.47
  6. Step 6: Final answer
    x = 319,303.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.