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Finding the Fourth Proportional to 394,838.87, 544,877.72 and 222,793.35

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Solution

The fourth proportional to 394,838.87, 544,877.72 and 222,793.35 is: 307,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,838.87 : 544,877.72 = 222,793.35 : x
  2. Step 2: Convert to fraction form
    394,838.87/544,877.72 = 222,793.35/x
  3. Step 3: Cross multiply
    394,838.87x = 544,877.72 × 222,793.35
  4. Step 4: Simplify right side
    394,838.87x = 121,395,130,257.38
  5. Step 5: Solve for x
    x = 121,395,130,257.38/394,838.87
  6. Step 6: Final answer
    x = 307,454.87

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1.5x scale

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.