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Finding the Fourth Proportional to 339,469.79, 468,476.13 and 186,517.53

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Solution

The fourth proportional to 339,469.79, 468,476.13 and 186,517.53 is: 257,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,469.79 : 468,476.13 = 186,517.53 : x
  2. Step 2: Convert to fraction form
    339,469.79/468,476.13 = 186,517.53/x
  3. Step 3: Cross multiply
    339,469.79x = 468,476.13 × 186,517.53
  4. Step 4: Simplify right side
    339,469.79x = 87,379,010,631.56
  5. Step 5: Solve for x
    x = 87,379,010,631.56/339,469.79
  6. Step 6: Final answer
    x = 257,398.49

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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.