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Finding the Fourth Proportional to 1,176.08, 1,763.97 and 682.75

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Solution

The fourth proportional to 1,176.08, 1,763.97 and 682.75 is: 1,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.08 : 1,763.97 = 682.75 : x
  2. Step 2: Convert to fraction form
    1,176.08/1,763.97 = 682.75/x
  3. Step 3: Cross multiply
    1,176.08x = 1,763.97 × 682.75
  4. Step 4: Simplify right side
    1,176.08x = 1,204,354.93
  5. Step 5: Solve for x
    x = 1,204,354.93/1,176.08
  6. Step 6: Final answer
    x = 1,024.04

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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.