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Finding the Fourth Proportional to 542,817.80, 813,837.90 and 227,112.20

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Solution

The fourth proportional to 542,817.80, 813,837.90 and 227,112.20 is: 340,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,817.80 : 813,837.90 = 227,112.20 : x
  2. Step 2: Convert to fraction form
    542,817.80/813,837.90 = 227,112.20/x
  3. Step 3: Cross multiply
    542,817.80x = 813,837.90 × 227,112.20
  4. Step 4: Simplify right side
    542,817.80x = 184,832,515,912.38
  5. Step 5: Solve for x
    x = 184,832,515,912.38/542,817.80
  6. Step 6: Final answer
    x = 340,505.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.