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Finding the Fourth Proportional to 696.25, 1,044.48 and 227.56

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Solution

The fourth proportional to 696.25, 1,044.48 and 227.56 is: 341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.25 : 1,044.48 = 227.56 : x
  2. Step 2: Convert to fraction form
    696.25/1,044.48 = 227.56/x
  3. Step 3: Cross multiply
    696.25x = 1,044.48 × 227.56
  4. Step 4: Simplify right side
    696.25x = 237,681.87
  5. Step 5: Solve for x
    x = 237,681.87/696.25
  6. Step 6: Final answer
    x = 341.37

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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.