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Finding the Fourth Proportional to 397,816.42, 548,998.53 and 244,942.80

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Solution

The fourth proportional to 397,816.42, 548,998.53 and 244,942.80 is: 338,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,816.42 : 548,998.53 = 244,942.80 : x
  2. Step 2: Convert to fraction form
    397,816.42/548,998.53 = 244,942.80/x
  3. Step 3: Cross multiply
    397,816.42x = 548,998.53 × 244,942.80
  4. Step 4: Simplify right side
    397,816.42x = 134,473,237,134.08
  5. Step 5: Solve for x
    x = 134,473,237,134.08/397,816.42
  6. Step 6: Final answer
    x = 338,028.37

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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.