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Finding the Fourth Proportional to 1,174.26, 1,761.38 and 404.76

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Solution

The fourth proportional to 1,174.26, 1,761.38 and 404.76 is: 607.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.26 : 1,761.38 = 404.76 : x
  2. Step 2: Convert to fraction form
    1,174.26/1,761.38 = 404.76/x
  3. Step 3: Cross multiply
    1,174.26x = 1,761.38 × 404.76
  4. Step 4: Simplify right side
    1,174.26x = 712,936.17
  5. Step 5: Solve for x
    x = 712,936.17/1,174.26
  6. Step 6: Final answer
    x = 607.14

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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.