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Finding the Fourth Proportional to 696.63, 1,044.96 and 234.42

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Solution

The fourth proportional to 696.63, 1,044.96 and 234.42 is: 351.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.63 : 1,044.96 = 234.42 : x
  2. Step 2: Convert to fraction form
    696.63/1,044.96 = 234.42/x
  3. Step 3: Cross multiply
    696.63x = 1,044.96 × 234.42
  4. Step 4: Simplify right side
    696.63x = 244,959.52
  5. Step 5: Solve for x
    x = 244,959.52/696.63
  6. Step 6: Final answer
    x = 351.64

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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.