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Finding the Fourth Proportional to 1,174.41, 1,761.54 and 352.66

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Solution

The fourth proportional to 1,174.41, 1,761.54 and 352.66 is: 528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.41 : 1,761.54 = 352.66 : x
  2. Step 2: Convert to fraction form
    1,174.41/1,761.54 = 352.66/x
  3. Step 3: Cross multiply
    1,174.41x = 1,761.54 × 352.66
  4. Step 4: Simplify right side
    1,174.41x = 621,224.70
  5. Step 5: Solve for x
    x = 621,224.70/1,174.41
  6. Step 6: Final answer
    x = 528.97

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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.