Home / 861,609.32-1,189,180.29-499,033.07

Finding the Fourth Proportional to 861,609.32, 1,189,180.29 and 499,033.07

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Solution

The fourth proportional to 861,609.32, 1,189,180.29 and 499,033.07 is: 688,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,609.32 : 1,189,180.29 = 499,033.07 : x
  2. Step 2: Convert to fraction form
    861,609.32/1,189,180.29 = 499,033.07/x
  3. Step 3: Cross multiply
    861,609.32x = 1,189,180.29 × 499,033.07
  4. Step 4: Simplify right side
    861,609.32x = 593,440,284,956.29
  5. Step 5: Solve for x
    x = 593,440,284,956.29/861,609.32
  6. Step 6: Final answer
    x = 688,757.97

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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.