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Finding the Fourth Proportional to 1,331.92, 1,998.77 and 466.23

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Solution

The fourth proportional to 1,331.92, 1,998.77 and 466.23 is: 699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.92 : 1,998.77 = 466.23 : x
  2. Step 2: Convert to fraction form
    1,331.92/1,998.77 = 466.23/x
  3. Step 3: Cross multiply
    1,331.92x = 1,998.77 × 466.23
  4. Step 4: Simplify right side
    1,331.92x = 931,884.21
  5. Step 5: Solve for x
    x = 931,884.21/1,331.92
  6. Step 6: Final answer
    x = 699.66

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Double scale
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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.