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Finding the Fourth Proportional to 336,906.40, 504,193.20 and 308,912.80

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Solution

The fourth proportional to 336,906.40, 504,193.20 and 308,912.80 is: 462,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,906.40 : 504,193.20 = 308,912.80 : x
  2. Step 2: Convert to fraction form
    336,906.40/504,193.20 = 308,912.80/x
  3. Step 3: Cross multiply
    336,906.40x = 504,193.20 × 308,912.80
  4. Step 4: Simplify right side
    336,906.40x = 155,751,733,152.96
  5. Step 5: Solve for x
    x = 155,751,733,152.96/336,906.40
  6. Step 6: Final answer
    x = 462,299.72

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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.