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Finding the Fourth Proportional to 696.55, 1,044.72 and 234.25

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Solution

The fourth proportional to 696.55, 1,044.72 and 234.25 is: 351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.55 : 1,044.72 = 234.25 : x
  2. Step 2: Convert to fraction form
    696.55/1,044.72 = 234.25/x
  3. Step 3: Cross multiply
    696.55x = 1,044.72 × 234.25
  4. Step 4: Simplify right side
    696.55x = 244,725.66
  5. Step 5: Solve for x
    x = 244,725.66/696.55
  6. Step 6: Final answer
    x = 351.34

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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.