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Finding the Fourth Proportional to 792.42, 1,188.64 and 244.62

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Solution

The fourth proportional to 792.42, 1,188.64 and 244.62 is: 366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.42 : 1,188.64 = 244.62 : x
  2. Step 2: Convert to fraction form
    792.42/1,188.64 = 244.62/x
  3. Step 3: Cross multiply
    792.42x = 1,188.64 × 244.62
  4. Step 4: Simplify right side
    792.42x = 290,765.12
  5. Step 5: Solve for x
    x = 290,765.12/792.42
  6. Step 6: Final answer
    x = 366.93

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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.