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Finding the Fourth Proportional to 396,866.08, 547,818.96 and 262,773.28

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Solution

The fourth proportional to 396,866.08, 547,818.96 and 262,773.28 is: 362,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,866.08 : 547,818.96 = 262,773.28 : x
  2. Step 2: Convert to fraction form
    396,866.08/547,818.96 = 262,773.28/x
  3. Step 3: Cross multiply
    396,866.08x = 547,818.96 × 262,773.28
  4. Step 4: Simplify right side
    396,866.08x = 143,952,184,965.39
  5. Step 5: Solve for x
    x = 143,952,184,965.39/396,866.08
  6. Step 6: Final answer
    x = 362,722.32

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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.