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Finding the Fourth Proportional to 622,052.20, 857,233.42 and 452,017

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Solution

The fourth proportional to 622,052.20, 857,233.42 and 452,017 is: 622,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,052.20 : 857,233.42 = 452,017 : x
  2. Step 2: Convert to fraction form
    622,052.20/857,233.42 = 452,017/x
  3. Step 3: Cross multiply
    622,052.20x = 857,233.42 × 452,017
  4. Step 4: Simplify right side
    622,052.20x = 387,484,078,808.14
  5. Step 5: Solve for x
    x = 387,484,078,808.14/622,052.20
  6. Step 6: Final answer
    x = 622,912.48

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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.