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Finding the Fourth Proportional to 609,770.80, 914,656.20 and 189,175.60

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Solution

The fourth proportional to 609,770.80, 914,656.20 and 189,175.60 is: 283,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,770.80 : 914,656.20 = 189,175.60 : x
  2. Step 2: Convert to fraction form
    609,770.80/914,656.20 = 189,175.60/x
  3. Step 3: Cross multiply
    609,770.80x = 914,656.20 × 189,175.60
  4. Step 4: Simplify right side
    609,770.80x = 173,030,635,428.72
  5. Step 5: Solve for x
    x = 173,030,635,428.72/609,770.80
  6. Step 6: Final answer
    x = 283,763.40

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Similar ratio
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1.5x scale

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.