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Finding the Fourth Proportional to 633,679.20, 950,694.96 and 515,056.80

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Solution

The fourth proportional to 633,679.20, 950,694.96 and 515,056.80 is: 772,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,679.20 : 950,694.96 = 515,056.80 : x
  2. Step 2: Convert to fraction form
    633,679.20/950,694.96 = 515,056.80/x
  3. Step 3: Cross multiply
    633,679.20x = 950,694.96 × 515,056.80
  4. Step 4: Simplify right side
    633,679.20x = 489,661,903,873.73
  5. Step 5: Solve for x
    x = 489,661,903,873.73/633,679.20
  6. Step 6: Final answer
    x = 772,728.38

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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.