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Finding the Fourth Proportional to 350,757.44, 484,045.32 and 189,612

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Solution

The fourth proportional to 350,757.44, 484,045.32 and 189,612 is: 261,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,757.44 : 484,045.32 = 189,612 : x
  2. Step 2: Convert to fraction form
    350,757.44/484,045.32 = 189,612/x
  3. Step 3: Cross multiply
    350,757.44x = 484,045.32 × 189,612
  4. Step 4: Simplify right side
    350,757.44x = 91,780,801,215.84
  5. Step 5: Solve for x
    x = 91,780,801,215.84/350,757.44
  6. Step 6: Final answer
    x = 261,664.59

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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.