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Finding the Fourth Proportional to 394,730.77, 544,695.55 and 222,639.25

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Solution

The fourth proportional to 394,730.77, 544,695.55 and 222,639.25 is: 307,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,730.77 : 544,695.55 = 222,639.25 : x
  2. Step 2: Convert to fraction form
    394,730.77/544,695.55 = 222,639.25/x
  3. Step 3: Cross multiply
    394,730.77x = 544,695.55 × 222,639.25
  4. Step 4: Simplify right side
    394,730.77x = 121,270,608,730.34
  5. Step 5: Solve for x
    x = 121,270,608,730.34/394,730.77
  6. Step 6: Final answer
    x = 307,223.60

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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.