Home / 856,138.77-1,181,468.56-493,560.90

Finding the Fourth Proportional to 856,138.77, 1,181,468.56 and 493,560.90

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Solution

The fourth proportional to 856,138.77, 1,181,468.56 and 493,560.90 is: 681,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,138.77 : 1,181,468.56 = 493,560.90 : x
  2. Step 2: Convert to fraction form
    856,138.77/1,181,468.56 = 493,560.90/x
  3. Step 3: Cross multiply
    856,138.77x = 1,181,468.56 × 493,560.90
  4. Step 4: Simplify right side
    856,138.77x = 583,126,689,917.34
  5. Step 5: Solve for x
    x = 583,126,689,917.34/856,138.77
  6. Step 6: Final answer
    x = 681,112.35

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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.