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Finding the Fourth Proportional to 932, 1,285.68 and 696.32

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Solution

The fourth proportional to 932, 1,285.68 and 696.32 is: 960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    932 : 1,285.68 = 696.32 : x
  2. Step 2: Convert to fraction form
    932/1,285.68 = 696.32/x
  3. Step 3: Cross multiply
    932x = 1,285.68 × 696.32
  4. Step 4: Simplify right side
    932x = 895,244.70
  5. Step 5: Solve for x
    x = 895,244.70/932
  6. Step 6: Final answer
    x = 960.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.