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Finding the Fourth Proportional to 323,753.80, 445,763.58 and 275,260.36

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Solution

The fourth proportional to 323,753.80, 445,763.58 and 275,260.36 is: 378,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,753.80 : 445,763.58 = 275,260.36 : x
  2. Step 2: Convert to fraction form
    323,753.80/445,763.58 = 275,260.36/x
  3. Step 3: Cross multiply
    323,753.80x = 445,763.58 × 275,260.36
  4. Step 4: Simplify right side
    323,753.80x = 122,701,043,505.69
  5. Step 5: Solve for x
    x = 122,701,043,505.69/323,753.80
  6. Step 6: Final answer
    x = 378,994.91

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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.