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Finding the Fourth Proportional to 696.37, 1,044.56 and 481.32

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Solution

The fourth proportional to 696.37, 1,044.56 and 481.32 is: 721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.37 : 1,044.56 = 481.32 : x
  2. Step 2: Convert to fraction form
    696.37/1,044.56 = 481.32/x
  3. Step 3: Cross multiply
    696.37x = 1,044.56 × 481.32
  4. Step 4: Simplify right side
    696.37x = 502,767.62
  5. Step 5: Solve for x
    x = 502,767.62/696.37
  6. Step 6: Final answer
    x = 721.98

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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.