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Finding the Fourth Proportional to 394,881.48, 544,936.46 and 213,593.40

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Solution

The fourth proportional to 394,881.48, 544,936.46 and 213,593.40 is: 294,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,881.48 : 544,936.46 = 213,593.40 : x
  2. Step 2: Convert to fraction form
    394,881.48/544,936.46 = 213,593.40/x
  3. Step 3: Cross multiply
    394,881.48x = 544,936.46 × 213,593.40
  4. Step 4: Simplify right side
    394,881.48x = 116,394,831,275.36
  5. Step 5: Solve for x
    x = 116,394,831,275.36/394,881.48
  6. Step 6: Final answer
    x = 294,758.90

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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.