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Finding the Fourth Proportional to 394,246.86, 544,060.88 and 212,958.79

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Solution

The fourth proportional to 394,246.86, 544,060.88 and 212,958.79 is: 293,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,246.86 : 544,060.88 = 212,958.79 : x
  2. Step 2: Convert to fraction form
    394,246.86/544,060.88 = 212,958.79/x
  3. Step 3: Cross multiply
    394,246.86x = 544,060.88 × 212,958.79
  4. Step 4: Simplify right side
    394,246.86x = 115,862,545,064.79
  5. Step 5: Solve for x
    x = 115,862,545,064.79/394,246.86
  6. Step 6: Final answer
    x = 293,883.24

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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.