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Finding the Fourth Proportional to 439,843.76, 606,803.97 and 267,623.66

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Solution

The fourth proportional to 439,843.76, 606,803.97 and 267,623.66 is: 369,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,843.76 : 606,803.97 = 267,623.66 : x
  2. Step 2: Convert to fraction form
    439,843.76/606,803.97 = 267,623.66/x
  3. Step 3: Cross multiply
    439,843.76x = 606,803.97 × 267,623.66
  4. Step 4: Simplify right side
    439,843.76x = 162,395,099,353.93
  5. Step 5: Solve for x
    x = 162,395,099,353.93/439,843.76
  6. Step 6: Final answer
    x = 369,210.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.