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Finding the Fourth Proportional to 494,885.16, 682,903.98 and 290,944.44

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Solution

The fourth proportional to 494,885.16, 682,903.98 and 290,944.44 is: 401,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,885.16 : 682,903.98 = 290,944.44 : x
  2. Step 2: Convert to fraction form
    494,885.16/682,903.98 = 290,944.44/x
  3. Step 3: Cross multiply
    494,885.16x = 682,903.98 × 290,944.44
  4. Step 4: Simplify right side
    494,885.16x = 198,687,116,034.87
  5. Step 5: Solve for x
    x = 198,687,116,034.87/494,885.16
  6. Step 6: Final answer
    x = 401,481.26

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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.