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Finding the Fourth Proportional to 414,825.38, 622,328.79 and 134,370.98

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Solution

The fourth proportional to 414,825.38, 622,328.79 and 134,370.98 is: 201,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,825.38 : 622,328.79 = 134,370.98 : x
  2. Step 2: Convert to fraction form
    414,825.38/622,328.79 = 134,370.98/x
  3. Step 3: Cross multiply
    414,825.38x = 622,328.79 × 134,370.98
  4. Step 4: Simplify right side
    414,825.38x = 83,622,929,394.51
  5. Step 5: Solve for x
    x = 83,622,929,394.51/414,825.38
  6. Step 6: Final answer
    x = 201,585.86

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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.