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Finding the Fourth Proportional to 793.26, 1,188.60 and 484.17

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Solution

The fourth proportional to 793.26, 1,188.60 and 484.17 is: 725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.26 : 1,188.60 = 484.17 : x
  2. Step 2: Convert to fraction form
    793.26/1,188.60 = 484.17/x
  3. Step 3: Cross multiply
    793.26x = 1,188.60 × 484.17
  4. Step 4: Simplify right side
    793.26x = 575,484.46
  5. Step 5: Solve for x
    x = 575,484.46/793.26
  6. Step 6: Final answer
    x = 725.47

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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.