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Finding the Fourth Proportional to 267,719.85, 401,774.00 and 215,756.73

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Solution

The fourth proportional to 267,719.85, 401,774.00 and 215,756.73 is: 323,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,719.85 : 401,774.00 = 215,756.73 : x
  2. Step 2: Convert to fraction form
    267,719.85/401,774.00 = 215,756.73/x
  3. Step 3: Cross multiply
    267,719.85x = 401,774.00 × 215,756.73
  4. Step 4: Simplify right side
    267,719.85x = 86,685,443,360.24
  5. Step 5: Solve for x
    x = 86,685,443,360.24/267,719.85
  6. Step 6: Final answer
    x = 323,791.62

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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.