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Finding the Fourth Proportional to 701,309.98, 967,812.21 and 379,019.32

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Solution

The fourth proportional to 701,309.98, 967,812.21 and 379,019.32 is: 523,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,309.98 : 967,812.21 = 379,019.32 : x
  2. Step 2: Convert to fraction form
    701,309.98/967,812.21 = 379,019.32/x
  3. Step 3: Cross multiply
    701,309.98x = 967,812.21 × 379,019.32
  4. Step 4: Simplify right side
    701,309.98x = 366,819,525,721.90
  5. Step 5: Solve for x
    x = 366,819,525,721.90/701,309.98
  6. Step 6: Final answer
    x = 523,049.06

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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.