Home / 856,139.06-1,181,468.95-493,561.19

Finding the Fourth Proportional to 856,139.06, 1,181,468.95 and 493,561.19

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Solution

The fourth proportional to 856,139.06, 1,181,468.95 and 493,561.19 is: 681,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,139.06 : 1,181,468.95 = 493,561.19 : x
  2. Step 2: Convert to fraction form
    856,139.06/1,181,468.95 = 493,561.19/x
  3. Step 3: Cross multiply
    856,139.06x = 1,181,468.95 × 493,561.19
  4. Step 4: Simplify right side
    856,139.06x = 583,127,213,768.80
  5. Step 5: Solve for x
    x = 583,127,213,768.80/856,139.06
  6. Step 6: Final answer
    x = 681,112.74

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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.