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Finding the Fourth Proportional to 1,744.23, 2,616.67 and 574.30

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Solution

The fourth proportional to 1,744.23, 2,616.67 and 574.30 is: 861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.23 : 2,616.67 = 574.30 : x
  2. Step 2: Convert to fraction form
    1,744.23/2,616.67 = 574.30/x
  3. Step 3: Cross multiply
    1,744.23x = 2,616.67 × 574.30
  4. Step 4: Simplify right side
    1,744.23x = 1,502,753.58
  5. Step 5: Solve for x
    x = 1,502,753.58/1,744.23
  6. Step 6: Final answer
    x = 861.56

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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.