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Finding the Fourth Proportional to 437,631, 603,930.85 and 236,427

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Solution

The fourth proportional to 437,631, 603,930.85 and 236,427 is: 326,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,631 : 603,930.85 = 236,427 : x
  2. Step 2: Convert to fraction form
    437,631/603,930.85 = 236,427/x
  3. Step 3: Cross multiply
    437,631x = 603,930.85 × 236,427
  4. Step 4: Simplify right side
    437,631x = 142,785,558,481.88
  5. Step 5: Solve for x
    x = 142,785,558,481.88/437,631
  6. Step 6: Final answer
    x = 326,269.30

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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.