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Finding the Fourth Proportional to 609,817.05, 914,560.33 and 254,756.79

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Solution

The fourth proportional to 609,817.05, 914,560.33 and 254,756.79 is: 382,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,817.05 : 914,560.33 = 254,756.79 : x
  2. Step 2: Convert to fraction form
    609,817.05/914,560.33 = 254,756.79/x
  3. Step 3: Cross multiply
    609,817.05x = 914,560.33 × 254,756.79
  4. Step 4: Simplify right side
    609,817.05x = 232,990,453,932.14
  5. Step 5: Solve for x
    x = 232,990,453,932.14/609,817.05
  6. Step 6: Final answer
    x = 382,066.15

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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.