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Finding the Fourth Proportional to 995,662.20, 1,493,493.30 and 330,814.20

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Solution

The fourth proportional to 995,662.20, 1,493,493.30 and 330,814.20 is: 496,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,662.20 : 1,493,493.30 = 330,814.20 : x
  2. Step 2: Convert to fraction form
    995,662.20/1,493,493.30 = 330,814.20/x
  3. Step 3: Cross multiply
    995,662.20x = 1,493,493.30 × 330,814.20
  4. Step 4: Simplify right side
    995,662.20x = 494,068,791,244.86
  5. Step 5: Solve for x
    x = 494,068,791,244.86/995,662.20
  6. Step 6: Final answer
    x = 496,221.30

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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.