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Finding the Fourth Proportional to 1,744.59, 2,616.92 and 574.59

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Solution

The fourth proportional to 1,744.59, 2,616.92 and 574.59 is: 861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.59 : 2,616.92 = 574.59 : x
  2. Step 2: Convert to fraction form
    1,744.59/2,616.92 = 574.59/x
  3. Step 3: Cross multiply
    1,744.59x = 2,616.92 × 574.59
  4. Step 4: Simplify right side
    1,744.59x = 1,503,653.19
  5. Step 5: Solve for x
    x = 1,503,653.19/1,744.59
  6. Step 6: Final answer
    x = 861.89

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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.