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Finding the Fourth Proportional to 793.67, 1,190.58 and 273.60

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Solution

The fourth proportional to 793.67, 1,190.58 and 273.60 is: 410.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.67 : 1,190.58 = 273.60 : x
  2. Step 2: Convert to fraction form
    793.67/1,190.58 = 273.60/x
  3. Step 3: Cross multiply
    793.67x = 1,190.58 × 273.60
  4. Step 4: Simplify right side
    793.67x = 325,737.20
  5. Step 5: Solve for x
    x = 325,737.20/793.67
  6. Step 6: Final answer
    x = 410.42

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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.