Home / 861,560.72-1,189,065.32-494,181.16

Finding the Fourth Proportional to 861,560.72, 1,189,065.32 and 494,181.16

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Solution

The fourth proportional to 861,560.72, 1,189,065.32 and 494,181.16 is: 682,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,560.72 : 1,189,065.32 = 494,181.16 : x
  2. Step 2: Convert to fraction form
    861,560.72/1,189,065.32 = 494,181.16/x
  3. Step 3: Cross multiply
    861,560.72x = 1,189,065.32 × 494,181.16
  4. Step 4: Simplify right side
    861,560.72x = 587,613,679,153.37
  5. Step 5: Solve for x
    x = 587,613,679,153.37/861,560.72
  6. Step 6: Final answer
    x = 682,033.97

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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.