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Finding the Fourth Proportional to 494,614.74, 682,568.39 and 279,750.24

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Solution

The fourth proportional to 494,614.74, 682,568.39 and 279,750.24 is: 386,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,614.74 : 682,568.39 = 279,750.24 : x
  2. Step 2: Convert to fraction form
    494,614.74/682,568.39 = 279,750.24/x
  3. Step 3: Cross multiply
    494,614.74x = 682,568.39 × 279,750.24
  4. Step 4: Simplify right side
    494,614.74x = 190,948,670,918.91
  5. Step 5: Solve for x
    x = 190,948,670,918.91/494,614.74
  6. Step 6: Final answer
    x = 386,055.36

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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.