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Finding the Fourth Proportional to 394,398.94, 544,381.95 and 233,309.92

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Solution

The fourth proportional to 394,398.94, 544,381.95 and 233,309.92 is: 322,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,398.94 : 544,381.95 = 233,309.92 : x
  2. Step 2: Convert to fraction form
    394,398.94/544,381.95 = 233,309.92/x
  3. Step 3: Cross multiply
    394,398.94x = 544,381.95 × 233,309.92
  4. Step 4: Simplify right side
    394,398.94x = 127,009,709,203.94
  5. Step 5: Solve for x
    x = 127,009,709,203.94/394,398.94
  6. Step 6: Final answer
    x = 322,033.60

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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.