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Finding the Fourth Proportional to 267,816.30, 401,724.45 and 263,879.70

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Solution

The fourth proportional to 267,816.30, 401,724.45 and 263,879.70 is: 395,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,816.30 : 401,724.45 = 263,879.70 : x
  2. Step 2: Convert to fraction form
    267,816.30/401,724.45 = 263,879.70/x
  3. Step 3: Cross multiply
    267,816.30x = 401,724.45 × 263,879.70
  4. Step 4: Simplify right side
    267,816.30x = 106,006,927,348.67
  5. Step 5: Solve for x
    x = 106,006,927,348.67/267,816.30
  6. Step 6: Final answer
    x = 395,819.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.