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Finding the Fourth Proportional to 1,174.58, 1,761.42 and 352.58

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Solution

The fourth proportional to 1,174.58, 1,761.42 and 352.58 is: 528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.58 : 1,761.42 = 352.58 : x
  2. Step 2: Convert to fraction form
    1,174.58/1,761.42 = 352.58/x
  3. Step 3: Cross multiply
    1,174.58x = 1,761.42 × 352.58
  4. Step 4: Simplify right side
    1,174.58x = 621,032.66
  5. Step 5: Solve for x
    x = 621,032.66/1,174.58
  6. Step 6: Final answer
    x = 528.73

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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.