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Finding the Fourth Proportional to 1,797.68, 2,696.46 and 743.46

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Solution

The fourth proportional to 1,797.68, 2,696.46 and 743.46 is: 1,115.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.68 : 2,696.46 = 743.46 : x
  2. Step 2: Convert to fraction form
    1,797.68/2,696.46 = 743.46/x
  3. Step 3: Cross multiply
    1,797.68x = 2,696.46 × 743.46
  4. Step 4: Simplify right side
    1,797.68x = 2,004,710.15
  5. Step 5: Solve for x
    x = 2,004,710.15/1,797.68
  6. Step 6: Final answer
    x = 1,115.17

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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.