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Finding the Fourth Proportional to 696.44, 1,044.71 and 234.20

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Solution

The fourth proportional to 696.44, 1,044.71 and 234.20 is: 351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.44 : 1,044.71 = 234.20 : x
  2. Step 2: Convert to fraction form
    696.44/1,044.71 = 234.20/x
  3. Step 3: Cross multiply
    696.44x = 1,044.71 × 234.20
  4. Step 4: Simplify right side
    696.44x = 244,671.08
  5. Step 5: Solve for x
    x = 244,671.08/696.44
  6. Step 6: Final answer
    x = 351.32

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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.