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Finding the Fourth Proportional to 2,246.22, 3,367.05 and 859.20

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Solution

The fourth proportional to 2,246.22, 3,367.05 and 859.20 is: 1,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,246.22 : 3,367.05 = 859.20 : x
  2. Step 2: Convert to fraction form
    2,246.22/3,367.05 = 859.20/x
  3. Step 3: Cross multiply
    2,246.22x = 3,367.05 × 859.20
  4. Step 4: Simplify right side
    2,246.22x = 2,892,969.36
  5. Step 5: Solve for x
    x = 2,892,969.36/2,246.22
  6. Step 6: Final answer
    x = 1,287.93

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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.