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Finding the Fourth Proportional to 394,251.23, 544,066.35 and 212,963.10

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Solution

The fourth proportional to 394,251.23, 544,066.35 and 212,963.10 is: 293,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,251.23 : 544,066.35 = 212,963.10 : x
  2. Step 2: Convert to fraction form
    394,251.23/544,066.35 = 212,963.10/x
  3. Step 3: Cross multiply
    394,251.23x = 544,066.35 × 212,963.10
  4. Step 4: Simplify right side
    394,251.23x = 115,866,056,501.69
  5. Step 5: Solve for x
    x = 115,866,056,501.69/394,251.23
  6. Step 6: Final answer
    x = 293,888.89

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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.