Home / 861,256.91-1,291,016.91-541,637.19

Finding the Fourth Proportional to 861,256.91, 1,291,016.91 and 541,637.19

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Solution

The fourth proportional to 861,256.91, 1,291,016.91 and 541,637.19 is: 811,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,256.91 : 1,291,016.91 = 541,637.19 : x
  2. Step 2: Convert to fraction form
    861,256.91/1,291,016.91 = 541,637.19/x
  3. Step 3: Cross multiply
    861,256.91x = 1,291,016.91 × 541,637.19
  4. Step 4: Simplify right side
    861,256.91x = 699,262,771,374.88
  5. Step 5: Solve for x
    x = 699,262,771,374.88/861,256.91
  6. Step 6: Final answer
    x = 811,909.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.