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Finding the Fourth Proportional to 1,474.10, 2,034.78 and 884.96

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Solution

The fourth proportional to 1,474.10, 2,034.78 and 884.96 is: 1,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.10 : 2,034.78 = 884.96 : x
  2. Step 2: Convert to fraction form
    1,474.10/2,034.78 = 884.96/x
  3. Step 3: Cross multiply
    1,474.10x = 2,034.78 × 884.96
  4. Step 4: Simplify right side
    1,474.10x = 1,800,698.91
  5. Step 5: Solve for x
    x = 1,800,698.91/1,474.10
  6. Step 6: Final answer
    x = 1,221.56

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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.