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Finding the Fourth Proportional to 493,497.72, 681,028.92 and 267,143.22

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Solution

The fourth proportional to 493,497.72, 681,028.92 and 267,143.22 is: 368,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,497.72 : 681,028.92 = 267,143.22 : x
  2. Step 2: Convert to fraction form
    493,497.72/681,028.92 = 267,143.22/x
  3. Step 3: Cross multiply
    493,497.72x = 681,028.92 × 267,143.22
  4. Step 4: Simplify right side
    493,497.72x = 181,932,258,601.92
  5. Step 5: Solve for x
    x = 181,932,258,601.92/493,497.72
  6. Step 6: Final answer
    x = 368,658.76

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1.5x scale

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.