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Finding the Fourth Proportional to 361.92, 499.52 and 224

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Solution

The fourth proportional to 361.92, 499.52 and 224 is: 309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.92 : 499.52 = 224 : x
  2. Step 2: Convert to fraction form
    361.92/499.52 = 224/x
  3. Step 3: Cross multiply
    361.92x = 499.52 × 224
  4. Step 4: Simplify right side
    361.92x = 111,892.48
  5. Step 5: Solve for x
    x = 111,892.48/361.92
  6. Step 6: Final answer
    x = 309.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.