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Finding the Fourth Proportional to 609,696.40, 914,573.40 and 189,266.80

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Solution

The fourth proportional to 609,696.40, 914,573.40 and 189,266.80 is: 283,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,696.40 : 914,573.40 = 189,266.80 : x
  2. Step 2: Convert to fraction form
    609,696.40/914,573.40 = 189,266.80/x
  3. Step 3: Cross multiply
    609,696.40x = 914,573.40 × 189,266.80
  4. Step 4: Simplify right side
    609,696.40x = 173,098,380,783.12
  5. Step 5: Solve for x
    x = 173,098,380,783.12/609,696.40
  6. Step 6: Final answer
    x = 283,909.14

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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.