Home / 885,786.20-1,328,679.30-586,604.60

Finding the Fourth Proportional to 885,786.20, 1,328,679.30 and 586,604.60

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Solution

The fourth proportional to 885,786.20, 1,328,679.30 and 586,604.60 is: 879,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,786.20 : 1,328,679.30 = 586,604.60 : x
  2. Step 2: Convert to fraction form
    885,786.20/1,328,679.30 = 586,604.60/x
  3. Step 3: Cross multiply
    885,786.20x = 1,328,679.30 × 586,604.60
  4. Step 4: Simplify right side
    885,786.20x = 779,409,389,304.78
  5. Step 5: Solve for x
    x = 779,409,389,304.78/885,786.20
  6. Step 6: Final answer
    x = 879,906.90

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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.