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Finding the Fourth Proportional to 3,393.60, 5,090.22 and 1,084.92

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Solution

The fourth proportional to 3,393.60, 5,090.22 and 1,084.92 is: 1,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.60 : 5,090.22 = 1,084.92 : x
  2. Step 2: Convert to fraction form
    3,393.60/5,090.22 = 1,084.92/x
  3. Step 3: Cross multiply
    3,393.60x = 5,090.22 × 1,084.92
  4. Step 4: Simplify right side
    3,393.60x = 5,522,481.48
  5. Step 5: Solve for x
    x = 5,522,481.48/3,393.60
  6. Step 6: Final answer
    x = 1,627.32

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1.5x scale

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.