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Finding the Fourth Proportional to 396,776.04, 547,718.40 and 267,889.12

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Solution

The fourth proportional to 396,776.04, 547,718.40 and 267,889.12 is: 369,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,776.04 : 547,718.40 = 267,889.12 : x
  2. Step 2: Convert to fraction form
    396,776.04/547,718.40 = 267,889.12/x
  3. Step 3: Cross multiply
    396,776.04x = 547,718.40 × 267,889.12
  4. Step 4: Simplify right side
    396,776.04x = 146,727,800,183.81
  5. Step 5: Solve for x
    x = 146,727,800,183.81/396,776.04
  6. Step 6: Final answer
    x = 369,800.05

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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.