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Finding the Fourth Proportional to 386,873.28, 580,197.60 and 162,227.88

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Solution

The fourth proportional to 386,873.28, 580,197.60 and 162,227.88 is: 243,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,873.28 : 580,197.60 = 162,227.88 : x
  2. Step 2: Convert to fraction form
    386,873.28/580,197.60 = 162,227.88/x
  3. Step 3: Cross multiply
    386,873.28x = 580,197.60 × 162,227.88
  4. Step 4: Simplify right side
    386,873.28x = 94,124,226,629.09
  5. Step 5: Solve for x
    x = 94,124,226,629.09/386,873.28
  6. Step 6: Final answer
    x = 243,294.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.