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Finding the Fourth Proportional to 1,174.32, 1,761.41 and 352.53

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Solution

The fourth proportional to 1,174.32, 1,761.41 and 352.53 is: 528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.32 : 1,761.41 = 352.53 : x
  2. Step 2: Convert to fraction form
    1,174.32/1,761.41 = 352.53/x
  3. Step 3: Cross multiply
    1,174.32x = 1,761.41 × 352.53
  4. Step 4: Simplify right side
    1,174.32x = 620,949.87
  5. Step 5: Solve for x
    x = 620,949.87/1,174.32
  6. Step 6: Final answer
    x = 528.77

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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.