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Finding the Fourth Proportional to 1,797.13, 2,696.60 and 823.46

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Solution

The fourth proportional to 1,797.13, 2,696.60 and 823.46 is: 1,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.13 : 2,696.60 = 823.46 : x
  2. Step 2: Convert to fraction form
    1,797.13/2,696.60 = 823.46/x
  3. Step 3: Cross multiply
    1,797.13x = 2,696.60 × 823.46
  4. Step 4: Simplify right side
    1,797.13x = 2,220,542.24
  5. Step 5: Solve for x
    x = 2,220,542.24/1,797.13
  6. Step 6: Final answer
    x = 1,235.60

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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.