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Finding the Fourth Proportional to 639,007.72, 958,634.46 and 244,993

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Solution

The fourth proportional to 639,007.72, 958,634.46 and 244,993 is: 367,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,007.72 : 958,634.46 = 244,993 : x
  2. Step 2: Convert to fraction form
    639,007.72/958,634.46 = 244,993/x
  3. Step 3: Cross multiply
    639,007.72x = 958,634.46 × 244,993
  4. Step 4: Simplify right side
    639,007.72x = 234,858,732,258.78
  5. Step 5: Solve for x
    x = 234,858,732,258.78/639,007.72
  6. Step 6: Final answer
    x = 367,536.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.