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Finding the Fourth Proportional to 394,515.53, 544,420.54 and 222,432.02

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Solution

The fourth proportional to 394,515.53, 544,420.54 and 222,432.02 is: 306,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,515.53 : 544,420.54 = 222,432.02 : x
  2. Step 2: Convert to fraction form
    394,515.53/544,420.54 = 222,432.02/x
  3. Step 3: Cross multiply
    394,515.53x = 544,420.54 × 222,432.02
  4. Step 4: Simplify right side
    394,515.53x = 121,096,560,441.69
  5. Step 5: Solve for x
    x = 121,096,560,441.69/394,515.53
  6. Step 6: Final answer
    x = 306,950.05

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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.