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Finding the Fourth Proportional to 1,718.19, 2,576.07 and 793.26

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Solution

The fourth proportional to 1,718.19, 2,576.07 and 793.26 is: 1,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.19 : 2,576.07 = 793.26 : x
  2. Step 2: Convert to fraction form
    1,718.19/2,576.07 = 793.26/x
  3. Step 3: Cross multiply
    1,718.19x = 2,576.07 × 793.26
  4. Step 4: Simplify right side
    1,718.19x = 2,043,493.29
  5. Step 5: Solve for x
    x = 2,043,493.29/1,718.19
  6. Step 6: Final answer
    x = 1,189.33

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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.