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Finding the Fourth Proportional to 1,331.88, 1,998.30 and 466.44

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Solution

The fourth proportional to 1,331.88, 1,998.30 and 466.44 is: 699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.88 : 1,998.30 = 466.44 : x
  2. Step 2: Convert to fraction form
    1,331.88/1,998.30 = 466.44/x
  3. Step 3: Cross multiply
    1,331.88x = 1,998.30 × 466.44
  4. Step 4: Simplify right side
    1,331.88x = 932,087.05
  5. Step 5: Solve for x
    x = 932,087.05/1,331.88
  6. Step 6: Final answer
    x = 699.83

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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.