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Finding the Fourth Proportional to 701,969.68, 968,718.24 and 379,679.80

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Solution

The fourth proportional to 701,969.68, 968,718.24 and 379,679.80 is: 523,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,969.68 : 968,718.24 = 379,679.80 : x
  2. Step 2: Convert to fraction form
    701,969.68/968,718.24 = 379,679.80/x
  3. Step 3: Cross multiply
    701,969.68x = 968,718.24 × 379,679.80
  4. Step 4: Simplify right side
    701,969.68x = 367,802,747,619.55
  5. Step 5: Solve for x
    x = 367,802,747,619.55/701,969.68
  6. Step 6: Final answer
    x = 523,958.17

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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.