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Finding the Fourth Proportional to 531.12, 796.48 and 238.44

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Solution

The fourth proportional to 531.12, 796.48 and 238.44 is: 357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.12 : 796.48 = 238.44 : x
  2. Step 2: Convert to fraction form
    531.12/796.48 = 238.44/x
  3. Step 3: Cross multiply
    531.12x = 796.48 × 238.44
  4. Step 4: Simplify right side
    531.12x = 189,912.69
  5. Step 5: Solve for x
    x = 189,912.69/531.12
  6. Step 6: Final answer
    x = 357.57

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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.