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Finding the Fourth Proportional to 608,028.40, 839,079.39 and 332,387.47

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Solution

The fourth proportional to 608,028.40, 839,079.39 and 332,387.47 is: 458,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,028.40 : 839,079.39 = 332,387.47 : x
  2. Step 2: Convert to fraction form
    608,028.40/839,079.39 = 332,387.47/x
  3. Step 3: Cross multiply
    608,028.40x = 839,079.39 × 332,387.47
  4. Step 4: Simplify right side
    608,028.40x = 278,899,475,571.24
  5. Step 5: Solve for x
    x = 278,899,475,571.24/608,028.40
  6. Step 6: Final answer
    x = 458,694.82

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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.