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Finding the Fourth Proportional to 551,693.60, 827,517.92 and 191,946.80

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Solution

The fourth proportional to 551,693.60, 827,517.92 and 191,946.80 is: 287,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,693.60 : 827,517.92 = 191,946.80 : x
  2. Step 2: Convert to fraction form
    551,693.60/827,517.92 = 191,946.80/x
  3. Step 3: Cross multiply
    551,693.60x = 827,517.92 × 191,946.80
  4. Step 4: Simplify right side
    551,693.60x = 158,839,411,589.33
  5. Step 5: Solve for x
    x = 158,839,411,589.33/551,693.60
  6. Step 6: Final answer
    x = 287,912.37

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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.