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Finding the Fourth Proportional to 932.75, 1,286.52 and 792.65

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Solution

The fourth proportional to 932.75, 1,286.52 and 792.65 is: 1,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.75 : 1,286.52 = 792.65 : x
  2. Step 2: Convert to fraction form
    932.75/1,286.52 = 792.65/x
  3. Step 3: Cross multiply
    932.75x = 1,286.52 × 792.65
  4. Step 4: Simplify right side
    932.75x = 1,019,760.08
  5. Step 5: Solve for x
    x = 1,019,760.08/932.75
  6. Step 6: Final answer
    x = 1,093.28

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1.5x scale

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.