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Finding the Fourth Proportional to 609,694.88, 841,099.36 and 394,904

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Solution

The fourth proportional to 609,694.88, 841,099.36 and 394,904 is: 544,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,694.88 : 841,099.36 = 394,904 : x
  2. Step 2: Convert to fraction form
    609,694.88/841,099.36 = 394,904/x
  3. Step 3: Cross multiply
    609,694.88x = 841,099.36 × 394,904
  4. Step 4: Simplify right side
    609,694.88x = 332,153,501,661.44
  5. Step 5: Solve for x
    x = 332,153,501,661.44/609,694.88
  6. Step 6: Final answer
    x = 544,786.44

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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.