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Finding the Fourth Proportional to 792.88, 1,188.96 and 244.96

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Solution

The fourth proportional to 792.88, 1,188.96 and 244.96 is: 367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.88 : 1,188.96 = 244.96 : x
  2. Step 2: Convert to fraction form
    792.88/1,188.96 = 244.96/x
  3. Step 3: Cross multiply
    792.88x = 1,188.96 × 244.96
  4. Step 4: Simplify right side
    792.88x = 291,247.64
  5. Step 5: Solve for x
    x = 291,247.64/792.88
  6. Step 6: Final answer
    x = 367.33

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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.