Home / 861,533.35-1,189,027.49-494,153.80

Finding the Fourth Proportional to 861,533.35, 1,189,027.49 and 494,153.80

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Solution

The fourth proportional to 861,533.35, 1,189,027.49 and 494,153.80 is: 681,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,533.35 : 1,189,027.49 = 494,153.80 : x
  2. Step 2: Convert to fraction form
    861,533.35/1,189,027.49 = 494,153.80/x
  3. Step 3: Cross multiply
    861,533.35x = 1,189,027.49 × 494,153.80
  4. Step 4: Simplify right side
    861,533.35x = 587,562,452,487.96
  5. Step 5: Solve for x
    x = 587,562,452,487.96/861,533.35
  6. Step 6: Final answer
    x = 681,996.18

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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.