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Finding the Fourth Proportional to 494,245.44, 682,051.32 and 279,377.96

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Solution

The fourth proportional to 494,245.44, 682,051.32 and 279,377.96 is: 385,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,245.44 : 682,051.32 = 279,377.96 : x
  2. Step 2: Convert to fraction form
    494,245.44/682,051.32 = 279,377.96/x
  3. Step 3: Cross multiply
    494,245.44x = 682,051.32 × 279,377.96
  4. Step 4: Simplify right side
    494,245.44x = 190,550,102,986.65
  5. Step 5: Solve for x
    x = 190,550,102,986.65/494,245.44
  6. Step 6: Final answer
    x = 385,537.40

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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.