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Finding the Fourth Proportional to 744.26, 1,116.42 and 224.27

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Solution

The fourth proportional to 744.26, 1,116.42 and 224.27 is: 336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.26 : 1,116.42 = 224.27 : x
  2. Step 2: Convert to fraction form
    744.26/1,116.42 = 224.27/x
  3. Step 3: Cross multiply
    744.26x = 1,116.42 × 224.27
  4. Step 4: Simplify right side
    744.26x = 250,372.81
  5. Step 5: Solve for x
    x = 250,372.81/744.26
  6. Step 6: Final answer
    x = 336.41

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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.