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Finding the Fourth Proportional to 347,606.50, 479,696.97 and 188,630.50

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Solution

The fourth proportional to 347,606.50, 479,696.97 and 188,630.50 is: 260,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,606.50 : 479,696.97 = 188,630.50 : x
  2. Step 2: Convert to fraction form
    347,606.50/479,696.97 = 188,630.50/x
  3. Step 3: Cross multiply
    347,606.50x = 479,696.97 × 188,630.50
  4. Step 4: Simplify right side
    347,606.50x = 90,485,479,299.59
  5. Step 5: Solve for x
    x = 90,485,479,299.59/347,606.50
  6. Step 6: Final answer
    x = 260,310.09

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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.