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Finding the Fourth Proportional to 1,176.22, 1,764.48 and 354.52

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Solution

The fourth proportional to 1,176.22, 1,764.48 and 354.52 is: 531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.22 : 1,764.48 = 354.52 : x
  2. Step 2: Convert to fraction form
    1,176.22/1,764.48 = 354.52/x
  3. Step 3: Cross multiply
    1,176.22x = 1,764.48 × 354.52
  4. Step 4: Simplify right side
    1,176.22x = 625,543.45
  5. Step 5: Solve for x
    x = 625,543.45/1,176.22
  6. Step 6: Final answer
    x = 531.83

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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.