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Finding the Fourth Proportional to 1,174.26, 1,761.08 and 443.44

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Solution

The fourth proportional to 1,174.26, 1,761.08 and 443.44 is: 665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.26 : 1,761.08 = 443.44 : x
  2. Step 2: Convert to fraction form
    1,174.26/1,761.08 = 443.44/x
  3. Step 3: Cross multiply
    1,174.26x = 1,761.08 × 443.44
  4. Step 4: Simplify right side
    1,174.26x = 780,933.32
  5. Step 5: Solve for x
    x = 780,933.32/1,174.26
  6. Step 6: Final answer
    x = 665.04

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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.