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Finding the Fourth Proportional to 1,174.34, 1,761.71 and 352.53

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Solution

The fourth proportional to 1,174.34, 1,761.71 and 352.53 is: 528.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.34 : 1,761.71 = 352.53 : x
  2. Step 2: Convert to fraction form
    1,174.34/1,761.71 = 352.53/x
  3. Step 3: Cross multiply
    1,174.34x = 1,761.71 × 352.53
  4. Step 4: Simplify right side
    1,174.34x = 621,053.86
  5. Step 5: Solve for x
    x = 621,053.86/1,174.34
  6. Step 6: Final answer
    x = 528.86

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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.