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Finding the Fourth Proportional to 396,424.32, 547,048.08 and 226,669.56

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Solution

The fourth proportional to 396,424.32, 547,048.08 and 226,669.56 is: 312,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,424.32 : 547,048.08 = 226,669.56 : x
  2. Step 2: Convert to fraction form
    396,424.32/547,048.08 = 226,669.56/x
  3. Step 3: Cross multiply
    396,424.32x = 547,048.08 × 226,669.56
  4. Step 4: Simplify right side
    396,424.32x = 123,999,147,592.45
  5. Step 5: Solve for x
    x = 123,999,147,592.45/396,424.32
  6. Step 6: Final answer
    x = 312,794.00

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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.