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Finding the Fourth Proportional to 356,399.28, 491,826.92 and 193,052.68

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Solution

The fourth proportional to 356,399.28, 491,826.92 and 193,052.68 is: 266,410.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,399.28 : 491,826.92 = 193,052.68 : x
  2. Step 2: Convert to fraction form
    356,399.28/491,826.92 = 193,052.68/x
  3. Step 3: Cross multiply
    356,399.28x = 491,826.92 × 193,052.68
  4. Step 4: Simplify right side
    356,399.28x = 94,948,505,002.15
  5. Step 5: Solve for x
    x = 94,948,505,002.15/356,399.28
  6. Step 6: Final answer
    x = 266,410.48

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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.