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Finding the Fourth Proportional to 620,552.43, 856,373.97 and 344,936.16

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Solution

The fourth proportional to 620,552.43, 856,373.97 and 344,936.16 is: 476,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,552.43 : 856,373.97 = 344,936.16 : x
  2. Step 2: Convert to fraction form
    620,552.43/856,373.97 = 344,936.16/x
  3. Step 3: Cross multiply
    620,552.43x = 856,373.97 × 344,936.16
  4. Step 4: Simplify right side
    620,552.43x = 295,394,348,735.76
  5. Step 5: Solve for x
    x = 295,394,348,735.76/620,552.43
  6. Step 6: Final answer
    x = 476,018.36

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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.