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Finding the Fourth Proportional to 696.60, 1,044.74 and 203

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Solution

The fourth proportional to 696.60, 1,044.74 and 203 is: 304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.60 : 1,044.74 = 203 : x
  2. Step 2: Convert to fraction form
    696.60/1,044.74 = 203/x
  3. Step 3: Cross multiply
    696.60x = 1,044.74 × 203
  4. Step 4: Simplify right side
    696.60x = 212,082.22
  5. Step 5: Solve for x
    x = 212,082.22/696.60
  6. Step 6: Final answer
    x = 304.46

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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.