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Finding the Fourth Proportional to 1,331.48, 1,996.01 and 465.32

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Solution

The fourth proportional to 1,331.48, 1,996.01 and 465.32 is: 697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.48 : 1,996.01 = 465.32 : x
  2. Step 2: Convert to fraction form
    1,331.48/1,996.01 = 465.32/x
  3. Step 3: Cross multiply
    1,331.48x = 1,996.01 × 465.32
  4. Step 4: Simplify right side
    1,331.48x = 928,787.78
  5. Step 5: Solve for x
    x = 928,787.78/1,331.48
  6. Step 6: Final answer
    x = 697.56

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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.