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Finding the Fourth Proportional to 300,418.56, 414,571.20 and 164,448.96

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Solution

The fourth proportional to 300,418.56, 414,571.20 and 164,448.96 is: 226,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,418.56 : 414,571.20 = 164,448.96 : x
  2. Step 2: Convert to fraction form
    300,418.56/414,571.20 = 164,448.96/x
  3. Step 3: Cross multiply
    300,418.56x = 414,571.20 × 164,448.96
  4. Step 4: Simplify right side
    300,418.56x = 68,175,802,685.95
  5. Step 5: Solve for x
    x = 68,175,802,685.95/300,418.56
  6. Step 6: Final answer
    x = 226,936.05

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1.5x scale

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.