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Finding the Fourth Proportional to 339,630.57, 468,694.44 and 186,685.47

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Solution

The fourth proportional to 339,630.57, 468,694.44 and 186,685.47 is: 257,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,630.57 : 468,694.44 = 186,685.47 : x
  2. Step 2: Convert to fraction form
    339,630.57/468,694.44 = 186,685.47/x
  3. Step 3: Cross multiply
    339,630.57x = 468,694.44 × 186,685.47
  4. Step 4: Simplify right side
    339,630.57x = 87,498,441,817.79
  5. Step 5: Solve for x
    x = 87,498,441,817.79/339,630.57
  6. Step 6: Final answer
    x = 257,628.29

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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.