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Finding the Fourth Proportional to 696.42, 1,044.54 and 234.18

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Solution

The fourth proportional to 696.42, 1,044.54 and 234.18 is: 351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.42 : 1,044.54 = 234.18 : x
  2. Step 2: Convert to fraction form
    696.42/1,044.54 = 234.18/x
  3. Step 3: Cross multiply
    696.42x = 1,044.54 × 234.18
  4. Step 4: Simplify right side
    696.42x = 244,610.38
  5. Step 5: Solve for x
    x = 244,610.38/696.42
  6. Step 6: Final answer
    x = 351.24

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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.