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Finding the Fourth Proportional to 1,374.44, 2,062.90 and 1,227.96

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Solution

The fourth proportional to 1,374.44, 2,062.90 and 1,227.96 is: 1,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.44 : 2,062.90 = 1,227.96 : x
  2. Step 2: Convert to fraction form
    1,374.44/2,062.90 = 1,227.96/x
  3. Step 3: Cross multiply
    1,374.44x = 2,062.90 × 1,227.96
  4. Step 4: Simplify right side
    1,374.44x = 2,533,158.68
  5. Step 5: Solve for x
    x = 2,533,158.68/1,374.44
  6. Step 6: Final answer
    x = 1,843.05

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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.