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Finding the Fourth Proportional to 1,862.42, 2,794.26 and 1,169.60

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Solution

The fourth proportional to 1,862.42, 2,794.26 and 1,169.60 is: 1,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.42 : 2,794.26 = 1,169.60 : x
  2. Step 2: Convert to fraction form
    1,862.42/2,794.26 = 1,169.60/x
  3. Step 3: Cross multiply
    1,862.42x = 2,794.26 × 1,169.60
  4. Step 4: Simplify right side
    1,862.42x = 3,268,166.50
  5. Step 5: Solve for x
    x = 3,268,166.50/1,862.42
  6. Step 6: Final answer
    x = 1,754.80

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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.