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Finding the Fourth Proportional to 2,202.73, 3,304.40 and 742.30

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Solution

The fourth proportional to 2,202.73, 3,304.40 and 742.30 is: 1,113.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.73 : 3,304.40 = 742.30 : x
  2. Step 2: Convert to fraction form
    2,202.73/3,304.40 = 742.30/x
  3. Step 3: Cross multiply
    2,202.73x = 3,304.40 × 742.30
  4. Step 4: Simplify right side
    2,202.73x = 2,452,856.12
  5. Step 5: Solve for x
    x = 2,452,856.12/2,202.73
  6. Step 6: Final answer
    x = 1,113.55

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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.