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Finding the Fourth Proportional to 399,690.73, 599,951.36 and 267,494.77

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Solution

The fourth proportional to 399,690.73, 599,951.36 and 267,494.77 is: 401,520.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,690.73 : 599,951.36 = 267,494.77 : x
  2. Step 2: Convert to fraction form
    399,690.73/599,951.36 = 267,494.77/x
  3. Step 3: Cross multiply
    399,690.73x = 599,951.36 × 267,494.77
  4. Step 4: Simplify right side
    399,690.73x = 160,483,851,054.39
  5. Step 5: Solve for x
    x = 160,483,851,054.39/399,690.73
  6. Step 6: Final answer
    x = 401,520.07

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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.