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Finding the Fourth Proportional to 701,963.89, 968,710.35 and 396,105.09

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Solution

The fourth proportional to 701,963.89, 968,710.35 and 396,105.09 is: 546,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,963.89 : 968,710.35 = 396,105.09 : x
  2. Step 2: Convert to fraction form
    701,963.89/968,710.35 = 396,105.09/x
  3. Step 3: Cross multiply
    701,963.89x = 968,710.35 × 396,105.09
  4. Step 4: Simplify right side
    701,963.89x = 383,711,093,546.60
  5. Step 5: Solve for x
    x = 383,711,093,546.60/701,963.89
  6. Step 6: Final answer
    x = 546,625.12

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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.