Home / 1,131,450.08-1,561,441.28-622,191.20

Finding the Fourth Proportional to 1,131,450.08, 1,561,441.28 and 622,191.20

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Solution

The fourth proportional to 1,131,450.08, 1,561,441.28 and 622,191.20 is: 858,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,450.08 : 1,561,441.28 = 622,191.20 : x
  2. Step 2: Convert to fraction form
    1,131,450.08/1,561,441.28 = 622,191.20/x
  3. Step 3: Cross multiply
    1,131,450.08x = 1,561,441.28 × 622,191.20
  4. Step 4: Simplify right side
    1,131,450.08x = 971,515,023,732.74
  5. Step 5: Solve for x
    x = 971,515,023,732.74/1,131,450.08
  6. Step 6: Final answer
    x = 858,645.95

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Double scale
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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.