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Finding the Fourth Proportional to 995,698.80, 1,493,548.20 and 330,850.80

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Solution

The fourth proportional to 995,698.80, 1,493,548.20 and 330,850.80 is: 496,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,698.80 : 1,493,548.20 = 330,850.80 : x
  2. Step 2: Convert to fraction form
    995,698.80/1,493,548.20 = 330,850.80/x
  3. Step 3: Cross multiply
    995,698.80x = 1,493,548.20 × 330,850.80
  4. Step 4: Simplify right side
    995,698.80x = 494,141,616,808.56
  5. Step 5: Solve for x
    x = 494,141,616,808.56/995,698.80
  6. Step 6: Final answer
    x = 496,276.20

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Double scale
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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.