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Finding the Fourth Proportional to 793.46, 1,190.18 and 216.33

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Solution

The fourth proportional to 793.46, 1,190.18 and 216.33 is: 324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.46 : 1,190.18 = 216.33 : x
  2. Step 2: Convert to fraction form
    793.46/1,190.18 = 216.33/x
  3. Step 3: Cross multiply
    793.46x = 1,190.18 × 216.33
  4. Step 4: Simplify right side
    793.46x = 257,472.18
  5. Step 5: Solve for x
    x = 257,472.18/793.46
  6. Step 6: Final answer
    x = 324.50

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Double scale
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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.