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Finding the Fourth Proportional to 624,673, 861,982.59 and 352,724.41

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Solution

The fourth proportional to 624,673, 861,982.59 and 352,724.41 is: 486,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,673 : 861,982.59 = 352,724.41 : x
  2. Step 2: Convert to fraction form
    624,673/861,982.59 = 352,724.41/x
  3. Step 3: Cross multiply
    624,673x = 861,982.59 × 352,724.41
  4. Step 4: Simplify right side
    624,673x = 304,042,300,488.02
  5. Step 5: Solve for x
    x = 304,042,300,488.02/624,673
  6. Step 6: Final answer
    x = 486,722.33

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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.