Home / 856,139.77-1,181,469.94-493,561.90

Finding the Fourth Proportional to 856,139.77, 1,181,469.94 and 493,561.90

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Solution

The fourth proportional to 856,139.77, 1,181,469.94 and 493,561.90 is: 681,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,139.77 : 1,181,469.94 = 493,561.90 : x
  2. Step 2: Convert to fraction form
    856,139.77/1,181,469.94 = 493,561.90/x
  3. Step 3: Cross multiply
    856,139.77x = 1,181,469.94 × 493,561.90
  4. Step 4: Simplify right side
    856,139.77x = 583,128,548,379.29
  5. Step 5: Solve for x
    x = 583,128,548,379.29/856,139.77
  6. Step 6: Final answer
    x = 681,113.73

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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.