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Finding the Fourth Proportional to 493,256.65, 680,687.01 and 275,463.03

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Solution

The fourth proportional to 493,256.65, 680,687.01 and 275,463.03 is: 380,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,256.65 : 680,687.01 = 275,463.03 : x
  2. Step 2: Convert to fraction form
    493,256.65/680,687.01 = 275,463.03/x
  3. Step 3: Cross multiply
    493,256.65x = 680,687.01 × 275,463.03
  4. Step 4: Simplify right side
    493,256.65x = 187,504,103,817.84
  5. Step 5: Solve for x
    x = 187,504,103,817.84/493,256.65
  6. Step 6: Final answer
    x = 380,134.97

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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.