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Finding the Fourth Proportional to 609,674.40, 914,540.40 and 189,244.80

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Solution

The fourth proportional to 609,674.40, 914,540.40 and 189,244.80 is: 283,876.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,674.40 : 914,540.40 = 189,244.80 : x
  2. Step 2: Convert to fraction form
    609,674.40/914,540.40 = 189,244.80/x
  3. Step 3: Cross multiply
    609,674.40x = 914,540.40 × 189,244.80
  4. Step 4: Simplify right side
    609,674.40x = 173,072,015,089.92
  5. Step 5: Solve for x
    x = 173,072,015,089.92/609,674.40
  6. Step 6: Final answer
    x = 283,876.14

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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.