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Finding the Fourth Proportional to 4,406.94, 6,620.22 and 4,183.20

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Solution

The fourth proportional to 4,406.94, 6,620.22 and 4,183.20 is: 6,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406.94 : 6,620.22 = 4,183.20 : x
  2. Step 2: Convert to fraction form
    4,406.94/6,620.22 = 4,183.20/x
  3. Step 3: Cross multiply
    4,406.94x = 6,620.22 × 4,183.20
  4. Step 4: Simplify right side
    4,406.94x = 27,693,704.30
  5. Step 5: Solve for x
    x = 27,693,704.30/4,406.94
  6. Step 6: Final answer
    x = 6,284.11

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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.