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Finding the Fourth Proportional to 445,074.66, 667,782.63 and 267,707.34

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Solution

The fourth proportional to 445,074.66, 667,782.63 and 267,707.34 is: 401,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,074.66 : 667,782.63 = 267,707.34 : x
  2. Step 2: Convert to fraction form
    445,074.66/667,782.63 = 267,707.34/x
  3. Step 3: Cross multiply
    445,074.66x = 667,782.63 × 267,707.34
  4. Step 4: Simplify right side
    445,074.66x = 178,770,311,575.50
  5. Step 5: Solve for x
    x = 178,770,311,575.50/445,074.66
  6. Step 6: Final answer
    x = 401,663.65

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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.