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Finding the Fourth Proportional to 1,744.85, 2,615.08 and 923.49

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Solution

The fourth proportional to 1,744.85, 2,615.08 and 923.49 is: 1,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.85 : 2,615.08 = 923.49 : x
  2. Step 2: Convert to fraction form
    1,744.85/2,615.08 = 923.49/x
  3. Step 3: Cross multiply
    1,744.85x = 2,615.08 × 923.49
  4. Step 4: Simplify right side
    1,744.85x = 2,414,995.61
  5. Step 5: Solve for x
    x = 2,414,995.61/1,744.85
  6. Step 6: Final answer
    x = 1,384.07

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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.