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Finding the Fourth Proportional to 494,335.44, 682,156.44 and 279,462.60

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Solution

The fourth proportional to 494,335.44, 682,156.44 and 279,462.60 is: 385,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,335.44 : 682,156.44 = 279,462.60 : x
  2. Step 2: Convert to fraction form
    494,335.44/682,156.44 = 279,462.60/x
  3. Step 3: Cross multiply
    494,335.44x = 682,156.44 × 279,462.60
  4. Step 4: Simplify right side
    494,335.44x = 190,637,212,329.14
  5. Step 5: Solve for x
    x = 190,637,212,329.14/494,335.44
  6. Step 6: Final answer
    x = 385,643.43

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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.