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Finding the Fourth Proportional to 696, 1,044 and 657.52

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Solution

The fourth proportional to 696, 1,044 and 657.52 is: 986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    696 : 1,044 = 657.52 : x
  2. Step 2: Convert to fraction form
    696/1,044 = 657.52/x
  3. Step 3: Cross multiply
    696x = 1,044 × 657.52
  4. Step 4: Simplify right side
    696x = 686,450.88
  5. Step 5: Solve for x
    x = 686,450.88/696
  6. Step 6: Final answer
    x = 986.28

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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.