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Finding the Fourth Proportional to 551,486.10, 827,229.15 and 494,405.40

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Solution

The fourth proportional to 551,486.10, 827,229.15 and 494,405.40 is: 741,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,486.10 : 827,229.15 = 494,405.40 : x
  2. Step 2: Convert to fraction form
    551,486.10/827,229.15 = 494,405.40/x
  3. Step 3: Cross multiply
    551,486.10x = 827,229.15 × 494,405.40
  4. Step 4: Simplify right side
    551,486.10x = 408,986,558,797.41
  5. Step 5: Solve for x
    x = 408,986,558,797.41/551,486.10
  6. Step 6: Final answer
    x = 741,608.10

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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.