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Finding the Fourth Proportional to 3,338, 4,606.44 and 1,940.84

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Solution

The fourth proportional to 3,338, 4,606.44 and 1,940.84 is: 2,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338 : 4,606.44 = 1,940.84 : x
  2. Step 2: Convert to fraction form
    3,338/4,606.44 = 1,940.84/x
  3. Step 3: Cross multiply
    3,338x = 4,606.44 × 1,940.84
  4. Step 4: Simplify right side
    3,338x = 8,940,363.01
  5. Step 5: Solve for x
    x = 8,940,363.01/3,338
  6. Step 6: Final answer
    x = 2,678.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.