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Finding the Fourth Proportional to 793.44, 1,190.42 and 382.36

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Solution

The fourth proportional to 793.44, 1,190.42 and 382.36 is: 573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.44 : 1,190.42 = 382.36 : x
  2. Step 2: Convert to fraction form
    793.44/1,190.42 = 382.36/x
  3. Step 3: Cross multiply
    793.44x = 1,190.42 × 382.36
  4. Step 4: Simplify right side
    793.44x = 455,168.99
  5. Step 5: Solve for x
    x = 455,168.99/793.44
  6. Step 6: Final answer
    x = 573.67

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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.