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Finding the Fourth Proportional to 1,734.13, 2,601.19 and 694.60

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Solution

The fourth proportional to 1,734.13, 2,601.19 and 694.60 is: 1,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734.13 : 2,601.19 = 694.60 : x
  2. Step 2: Convert to fraction form
    1,734.13/2,601.19 = 694.60/x
  3. Step 3: Cross multiply
    1,734.13x = 2,601.19 × 694.60
  4. Step 4: Simplify right side
    1,734.13x = 1,806,786.57
  5. Step 5: Solve for x
    x = 1,806,786.57/1,734.13
  6. Step 6: Final answer
    x = 1,041.90

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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.