Home / 861,989.16-1,189,499.22-494,447.34

Finding the Fourth Proportional to 861,989.16, 1,189,499.22 and 494,447.34

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Solution

The fourth proportional to 861,989.16, 1,189,499.22 and 494,447.34 is: 682,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,989.16 : 1,189,499.22 = 494,447.34 : x
  2. Step 2: Convert to fraction form
    861,989.16/1,189,499.22 = 494,447.34/x
  3. Step 3: Cross multiply
    861,989.16x = 1,189,499.22 × 494,447.34
  4. Step 4: Simplify right side
    861,989.16x = 588,144,725,261.08
  5. Step 5: Solve for x
    x = 588,144,725,261.08/861,989.16
  6. Step 6: Final answer
    x = 682,311.05

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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.