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Finding the Fourth Proportional to 323,770.15, 485,655.23 and 252,911.35

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Solution

The fourth proportional to 323,770.15, 485,655.23 and 252,911.35 is: 379,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,770.15 : 485,655.23 = 252,911.35 : x
  2. Step 2: Convert to fraction form
    323,770.15/485,655.23 = 252,911.35/x
  3. Step 3: Cross multiply
    323,770.15x = 485,655.23 × 252,911.35
  4. Step 4: Simplify right side
    323,770.15x = 122,827,718,589.30
  5. Step 5: Solve for x
    x = 122,827,718,589.30/323,770.15
  6. Step 6: Final answer
    x = 379,367.03

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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.