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Finding the Fourth Proportional to 397,238.60, 595,857.90 and 366,912.20

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Solution

The fourth proportional to 397,238.60, 595,857.90 and 366,912.20 is: 550,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,238.60 : 595,857.90 = 366,912.20 : x
  2. Step 2: Convert to fraction form
    397,238.60/595,857.90 = 366,912.20/x
  3. Step 3: Cross multiply
    397,238.60x = 595,857.90 × 366,912.20
  4. Step 4: Simplify right side
    397,238.60x = 218,627,532,976.38
  5. Step 5: Solve for x
    x = 218,627,532,976.38/397,238.60
  6. Step 6: Final answer
    x = 550,368.30

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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.