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Finding the Fourth Proportional to 351,940.92, 485,679.08 and 190,795.44

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Solution

The fourth proportional to 351,940.92, 485,679.08 and 190,795.44 is: 263,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,940.92 : 485,679.08 = 190,795.44 : x
  2. Step 2: Convert to fraction form
    351,940.92/485,679.08 = 190,795.44/x
  3. Step 3: Cross multiply
    351,940.92x = 485,679.08 × 190,795.44
  4. Step 4: Simplify right side
    351,940.92x = 92,665,353,767.40
  5. Step 5: Solve for x
    x = 92,665,353,767.40/351,940.92
  6. Step 6: Final answer
    x = 263,298.04

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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.