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Finding the Fourth Proportional to 3,659.83, 5,490.20 and 1,193.99

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Solution

The fourth proportional to 3,659.83, 5,490.20 and 1,193.99 is: 1,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.83 : 5,490.20 = 1,193.99 : x
  2. Step 2: Convert to fraction form
    3,659.83/5,490.20 = 1,193.99/x
  3. Step 3: Cross multiply
    3,659.83x = 5,490.20 × 1,193.99
  4. Step 4: Simplify right side
    3,659.83x = 6,555,243.90
  5. Step 5: Solve for x
    x = 6,555,243.90/3,659.83
  6. Step 6: Final answer
    x = 1,791.13

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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.