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Finding the Fourth Proportional to 327,497.67, 491,366.66 and 138,005.73

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Solution

The fourth proportional to 327,497.67, 491,366.66 and 138,005.73 is: 207,059.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,497.67 : 491,366.66 = 138,005.73 : x
  2. Step 2: Convert to fraction form
    327,497.67/491,366.66 = 138,005.73/x
  3. Step 3: Cross multiply
    327,497.67x = 491,366.66 × 138,005.73
  4. Step 4: Simplify right side
    327,497.67x = 67,811,413,920.93
  5. Step 5: Solve for x
    x = 67,811,413,920.93/327,497.67
  6. Step 6: Final answer
    x = 207,059.23

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1.5x scale

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.