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Finding the Fourth Proportional to 2,922.46, 4,383.58 and 731.16

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Solution

The fourth proportional to 2,922.46, 4,383.58 and 731.16 is: 1,096.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.46 : 4,383.58 = 731.16 : x
  2. Step 2: Convert to fraction form
    2,922.46/4,383.58 = 731.16/x
  3. Step 3: Cross multiply
    2,922.46x = 4,383.58 × 731.16
  4. Step 4: Simplify right side
    2,922.46x = 3,205,098.35
  5. Step 5: Solve for x
    x = 3,205,098.35/2,922.46
  6. Step 6: Final answer
    x = 1,096.71

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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.