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Finding the Fourth Proportional to 609,530.80, 914,296.20 and 396,954.40

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Solution

The fourth proportional to 609,530.80, 914,296.20 and 396,954.40 is: 595,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,530.80 : 914,296.20 = 396,954.40 : x
  2. Step 2: Convert to fraction form
    609,530.80/914,296.20 = 396,954.40/x
  3. Step 3: Cross multiply
    609,530.80x = 914,296.20 × 396,954.40
  4. Step 4: Simplify right side
    609,530.80x = 362,933,899,493.28
  5. Step 5: Solve for x
    x = 362,933,899,493.28/609,530.80
  6. Step 6: Final answer
    x = 595,431.60

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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.