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Finding the Fourth Proportional to 1,174.42, 1,761.43 and 444

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Solution

The fourth proportional to 1,174.42, 1,761.43 and 444 is: 665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.42 : 1,761.43 = 444 : x
  2. Step 2: Convert to fraction form
    1,174.42/1,761.43 = 444/x
  3. Step 3: Cross multiply
    1,174.42x = 1,761.43 × 444
  4. Step 4: Simplify right side
    1,174.42x = 782,074.92
  5. Step 5: Solve for x
    x = 782,074.92/1,174.42
  6. Step 6: Final answer
    x = 665.92

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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.