Home / 839,906.20-1,259,859.30-460,680.40

Finding the Fourth Proportional to 839,906.20, 1,259,859.30 and 460,680.40

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Solution

The fourth proportional to 839,906.20, 1,259,859.30 and 460,680.40 is: 691,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,906.20 : 1,259,859.30 = 460,680.40 : x
  2. Step 2: Convert to fraction form
    839,906.20/1,259,859.30 = 460,680.40/x
  3. Step 3: Cross multiply
    839,906.20x = 1,259,859.30 × 460,680.40
  4. Step 4: Simplify right side
    839,906.20x = 580,392,486,267.72
  5. Step 5: Solve for x
    x = 580,392,486,267.72/839,906.20
  6. Step 6: Final answer
    x = 691,020.60

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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.