Home / 1,131,194-1,561,084.20-621,933.20

Finding the Fourth Proportional to 1,131,194, 1,561,084.20 and 621,933.20

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Solution

The fourth proportional to 1,131,194, 1,561,084.20 and 621,933.20 is: 858,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,194 : 1,561,084.20 = 621,933.20 : x
  2. Step 2: Convert to fraction form
    1,131,194/1,561,084.20 = 621,933.20/x
  3. Step 3: Cross multiply
    1,131,194x = 1,561,084.20 × 621,933.20
  4. Step 4: Simplify right side
    1,131,194x = 970,890,091,975.44
  5. Step 5: Solve for x
    x = 970,890,091,975.44/1,131,194
  6. Step 6: Final answer
    x = 858,287.87

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.