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Finding the Fourth Proportional to 414,552.55, 621,759.27 and 115,063.56

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Solution

The fourth proportional to 414,552.55, 621,759.27 and 115,063.56 is: 172,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,552.55 : 621,759.27 = 115,063.56 : x
  2. Step 2: Convert to fraction form
    414,552.55/621,759.27 = 115,063.56/x
  3. Step 3: Cross multiply
    414,552.55x = 621,759.27 × 115,063.56
  4. Step 4: Simplify right side
    414,552.55x = 71,541,835,069.20
  5. Step 5: Solve for x
    x = 71,541,835,069.20/414,552.55
  6. Step 6: Final answer
    x = 172,576.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.