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Finding the Fourth Proportional to 415,111.70, 622,864.38 and 246,964.21

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Solution

The fourth proportional to 415,111.70, 622,864.38 and 246,964.21 is: 370,563.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,111.70 : 622,864.38 = 246,964.21 : x
  2. Step 2: Convert to fraction form
    415,111.70/622,864.38 = 246,964.21/x
  3. Step 3: Cross multiply
    415,111.70x = 622,864.38 × 246,964.21
  4. Step 4: Simplify right side
    415,111.70x = 153,825,208,912.80
  5. Step 5: Solve for x
    x = 153,825,208,912.80/415,111.70
  6. Step 6: Final answer
    x = 370,563.41

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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.