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Finding the Fourth Proportional to 330,628.60, 494,906.10 and 237,316.60

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Solution

The fourth proportional to 330,628.60, 494,906.10 and 237,316.60 is: 355,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,628.60 : 494,906.10 = 237,316.60 : x
  2. Step 2: Convert to fraction form
    330,628.60/494,906.10 = 237,316.60/x
  3. Step 3: Cross multiply
    330,628.60x = 494,906.10 × 237,316.60
  4. Step 4: Simplify right side
    330,628.60x = 117,449,432,971.26
  5. Step 5: Solve for x
    x = 117,449,432,971.26/330,628.60
  6. Step 6: Final answer
    x = 355,230.71

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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.