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Finding the Fourth Proportional to 394,262.57, 544,081.91 and 212,974.46

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Solution

The fourth proportional to 394,262.57, 544,081.91 and 212,974.46 is: 293,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,262.57 : 544,081.91 = 212,974.46 : x
  2. Step 2: Convert to fraction form
    394,262.57/544,081.91 = 212,974.46/x
  3. Step 3: Cross multiply
    394,262.57x = 544,081.91 × 212,974.46
  4. Step 4: Simplify right side
    394,262.57x = 115,875,547,192.74
  5. Step 5: Solve for x
    x = 115,875,547,192.74/394,262.57
  6. Step 6: Final answer
    x = 293,904.51

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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.