Home / 691,276.20-1,036,914.30-192,640.20

Finding the Fourth Proportional to 691,276.20, 1,036,914.30 and 192,640.20

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Solution

The fourth proportional to 691,276.20, 1,036,914.30 and 192,640.20 is: 288,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,276.20 : 1,036,914.30 = 192,640.20 : x
  2. Step 2: Convert to fraction form
    691,276.20/1,036,914.30 = 192,640.20/x
  3. Step 3: Cross multiply
    691,276.20x = 1,036,914.30 × 192,640.20
  4. Step 4: Simplify right side
    691,276.20x = 199,751,378,134.86
  5. Step 5: Solve for x
    x = 199,751,378,134.86/691,276.20
  6. Step 6: Final answer
    x = 288,960.30

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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.