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Finding the Fourth Proportional to 396,991.04, 547,858.08 and 227,279.84

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Solution

The fourth proportional to 396,991.04, 547,858.08 and 227,279.84 is: 313,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,991.04 : 547,858.08 = 227,279.84 : x
  2. Step 2: Convert to fraction form
    396,991.04/547,858.08 = 227,279.84/x
  3. Step 3: Cross multiply
    396,991.04x = 547,858.08 × 227,279.84
  4. Step 4: Simplify right side
    396,991.04x = 124,517,096,765.11
  5. Step 5: Solve for x
    x = 124,517,096,765.11/396,991.04
  6. Step 6: Final answer
    x = 313,652.16

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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.