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Finding the Fourth Proportional to 325,694.83, 490,760.91 and 267,826.81

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Solution

The fourth proportional to 325,694.83, 490,760.91 and 267,826.81 is: 403,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,694.83 : 490,760.91 = 267,826.81 : x
  2. Step 2: Convert to fraction form
    325,694.83/490,760.91 = 267,826.81/x
  3. Step 3: Cross multiply
    325,694.83x = 490,760.91 × 267,826.81
  4. Step 4: Simplify right side
    325,694.83x = 131,438,928,998.00
  5. Step 5: Solve for x
    x = 131,438,928,998.00/325,694.83
  6. Step 6: Final answer
    x = 403,564.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.