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Finding the Fourth Proportional to 793.14, 1,190.22 and 360.27

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Solution

The fourth proportional to 793.14, 1,190.22 and 360.27 is: 540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.14 : 1,190.22 = 360.27 : x
  2. Step 2: Convert to fraction form
    793.14/1,190.22 = 360.27/x
  3. Step 3: Cross multiply
    793.14x = 1,190.22 × 360.27
  4. Step 4: Simplify right side
    793.14x = 428,800.56
  5. Step 5: Solve for x
    x = 428,800.56/793.14
  6. Step 6: Final answer
    x = 540.64

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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.