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Finding the Fourth Proportional to 2,259.36, 3,388.86 and 873.36

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Solution

The fourth proportional to 2,259.36, 3,388.86 and 873.36 is: 1,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.36 : 3,388.86 = 873.36 : x
  2. Step 2: Convert to fraction form
    2,259.36/3,388.86 = 873.36/x
  3. Step 3: Cross multiply
    2,259.36x = 3,388.86 × 873.36
  4. Step 4: Simplify right side
    2,259.36x = 2,959,694.77
  5. Step 5: Solve for x
    x = 2,959,694.77/2,259.36
  6. Step 6: Final answer
    x = 1,309.97

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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.