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Finding the Fourth Proportional to 394,691.99, 544,662.54 and 222,662.57

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Solution

The fourth proportional to 394,691.99, 544,662.54 and 222,662.57 is: 307,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,691.99 : 544,662.54 = 222,662.57 : x
  2. Step 2: Convert to fraction form
    394,691.99/544,662.54 = 222,662.57/x
  3. Step 3: Cross multiply
    394,691.99x = 544,662.54 × 222,662.57
  4. Step 4: Simplify right side
    394,691.99x = 121,275,958,215.82
  5. Step 5: Solve for x
    x = 121,275,958,215.82/394,691.99
  6. Step 6: Final answer
    x = 307,267.34

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1.5x scale

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.