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Finding the Fourth Proportional to 1,174.32, 1,761.47 and 352.59

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Solution

The fourth proportional to 1,174.32, 1,761.47 and 352.59 is: 528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.32 : 1,761.47 = 352.59 : x
  2. Step 2: Convert to fraction form
    1,174.32/1,761.47 = 352.59/x
  3. Step 3: Cross multiply
    1,174.32x = 1,761.47 × 352.59
  4. Step 4: Simplify right side
    1,174.32x = 621,073.19
  5. Step 5: Solve for x
    x = 621,073.19/1,174.32
  6. Step 6: Final answer
    x = 528.88

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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.