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Finding the Fourth Proportional to 2,333.41, 3,220.41 and 1,338.49

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Solution

The fourth proportional to 2,333.41, 3,220.41 and 1,338.49 is: 1,847.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.41 : 3,220.41 = 1,338.49 : x
  2. Step 2: Convert to fraction form
    2,333.41/3,220.41 = 1,338.49/x
  3. Step 3: Cross multiply
    2,333.41x = 3,220.41 × 1,338.49
  4. Step 4: Simplify right side
    2,333.41x = 4,310,486.58
  5. Step 5: Solve for x
    x = 4,310,486.58/2,333.41
  6. Step 6: Final answer
    x = 1,847.29

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1.5x scale

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.