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Finding the Fourth Proportional to 267,810.30, 401,715.45 and 263,873.70

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Solution

The fourth proportional to 267,810.30, 401,715.45 and 263,873.70 is: 395,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,810.30 : 401,715.45 = 263,873.70 : x
  2. Step 2: Convert to fraction form
    267,810.30/401,715.45 = 263,873.70/x
  3. Step 3: Cross multiply
    267,810.30x = 401,715.45 × 263,873.70
  4. Step 4: Simplify right side
    267,810.30x = 106,002,142,138.67
  5. Step 5: Solve for x
    x = 106,002,142,138.67/267,810.30
  6. Step 6: Final answer
    x = 395,810.55

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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.