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Finding the Fourth Proportional to 1,768.52, 2,652.78 and 794.55

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Solution

The fourth proportional to 1,768.52, 2,652.78 and 794.55 is: 1,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.52 : 2,652.78 = 794.55 : x
  2. Step 2: Convert to fraction form
    1,768.52/2,652.78 = 794.55/x
  3. Step 3: Cross multiply
    1,768.52x = 2,652.78 × 794.55
  4. Step 4: Simplify right side
    1,768.52x = 2,107,766.35
  5. Step 5: Solve for x
    x = 2,107,766.35/1,768.52
  6. Step 6: Final answer
    x = 1,191.83

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1.5x scale

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.