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Finding the Fourth Proportional to 1,074.11, 1,481.84 and 654.13

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Solution

The fourth proportional to 1,074.11, 1,481.84 and 654.13 is: 902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.11 : 1,481.84 = 654.13 : x
  2. Step 2: Convert to fraction form
    1,074.11/1,481.84 = 654.13/x
  3. Step 3: Cross multiply
    1,074.11x = 1,481.84 × 654.13
  4. Step 4: Simplify right side
    1,074.11x = 969,316.00
  5. Step 5: Solve for x
    x = 969,316.00/1,074.11
  6. Step 6: Final answer
    x = 902.44

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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.