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Finding the Fourth Proportional to 394,523.55, 544,431.56 and 222,440.04

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Solution

The fourth proportional to 394,523.55, 544,431.56 and 222,440.04 is: 306,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,523.55 : 544,431.56 = 222,440.04 : x
  2. Step 2: Convert to fraction form
    394,523.55/544,431.56 = 222,440.04/x
  3. Step 3: Cross multiply
    394,523.55x = 544,431.56 × 222,440.04
  4. Step 4: Simplify right side
    394,523.55x = 121,103,376,871.46
  5. Step 5: Solve for x
    x = 121,103,376,871.46/394,523.55
  6. Step 6: Final answer
    x = 306,961.08

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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.