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Finding the Fourth Proportional to 463,910.34, 640,185.41 and 272,936.01

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Solution

The fourth proportional to 463,910.34, 640,185.41 and 272,936.01 is: 376,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,910.34 : 640,185.41 = 272,936.01 : x
  2. Step 2: Convert to fraction form
    463,910.34/640,185.41 = 272,936.01/x
  3. Step 3: Cross multiply
    463,910.34x = 640,185.41 × 272,936.01
  4. Step 4: Simplify right side
    463,910.34x = 174,729,650,100.93
  5. Step 5: Solve for x
    x = 174,729,650,100.93/463,910.34
  6. Step 6: Final answer
    x = 376,645.30

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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.