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Finding the Fourth Proportional to 1,748.08, 2,621.42 and 773.52

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Solution

The fourth proportional to 1,748.08, 2,621.42 and 773.52 is: 1,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.08 : 2,621.42 = 773.52 : x
  2. Step 2: Convert to fraction form
    1,748.08/2,621.42 = 773.52/x
  3. Step 3: Cross multiply
    1,748.08x = 2,621.42 × 773.52
  4. Step 4: Simplify right side
    1,748.08x = 2,027,720.80
  5. Step 5: Solve for x
    x = 2,027,720.80/1,748.08
  6. Step 6: Final answer
    x = 1,159.97

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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.