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Finding the Fourth Proportional to 665,839.94, 998,859.36 and 245,083.82

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Solution

The fourth proportional to 665,839.94, 998,859.36 and 245,083.82 is: 367,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,839.94 : 998,859.36 = 245,083.82 : x
  2. Step 2: Convert to fraction form
    665,839.94/998,859.36 = 245,083.82/x
  3. Step 3: Cross multiply
    665,839.94x = 998,859.36 × 245,083.82
  4. Step 4: Simplify right side
    665,839.94x = 244,804,267,591.56
  5. Step 5: Solve for x
    x = 244,804,267,591.56/665,839.94
  6. Step 6: Final answer
    x = 367,662.34

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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.