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Finding the Fourth Proportional to 944.10, 1,415.25 and 327.33

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Solution

The fourth proportional to 944.10, 1,415.25 and 327.33 is: 490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.10 : 1,415.25 = 327.33 : x
  2. Step 2: Convert to fraction form
    944.10/1,415.25 = 327.33/x
  3. Step 3: Cross multiply
    944.10x = 1,415.25 × 327.33
  4. Step 4: Simplify right side
    944.10x = 463,253.78
  5. Step 5: Solve for x
    x = 463,253.78/944.10
  6. Step 6: Final answer
    x = 490.68

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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.