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Finding the Fourth Proportional to 792.81, 1,189.17 and 244.92

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Solution

The fourth proportional to 792.81, 1,189.17 and 244.92 is: 367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.81 : 1,189.17 = 244.92 : x
  2. Step 2: Convert to fraction form
    792.81/1,189.17 = 244.92/x
  3. Step 3: Cross multiply
    792.81x = 1,189.17 × 244.92
  4. Step 4: Simplify right side
    792.81x = 291,255.98
  5. Step 5: Solve for x
    x = 291,255.98/792.81
  6. Step 6: Final answer
    x = 367.37

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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.