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Finding the Fourth Proportional to 396,804.04, 547,746.62 and 276,015.42

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Solution

The fourth proportional to 396,804.04, 547,746.62 and 276,015.42 is: 381,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,804.04 : 547,746.62 = 276,015.42 : x
  2. Step 2: Convert to fraction form
    396,804.04/547,746.62 = 276,015.42/x
  3. Step 3: Cross multiply
    396,804.04x = 547,746.62 × 276,015.42
  4. Step 4: Simplify right side
    396,804.04x = 151,186,511,992.80
  5. Step 5: Solve for x
    x = 151,186,511,992.80/396,804.04
  6. Step 6: Final answer
    x = 381,010.52

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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.