Home / 861,191.10-1,291,637.61-262,007.10

Finding the Fourth Proportional to 861,191.10, 1,291,637.61 and 262,007.10

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Solution

The fourth proportional to 861,191.10, 1,291,637.61 and 262,007.10 is: 392,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,191.10 : 1,291,637.61 = 262,007.10 : x
  2. Step 2: Convert to fraction form
    861,191.10/1,291,637.61 = 262,007.10/x
  3. Step 3: Cross multiply
    861,191.10x = 1,291,637.61 × 262,007.10
  4. Step 4: Simplify right side
    861,191.10x = 338,418,224,447.03
  5. Step 5: Solve for x
    x = 338,418,224,447.03/861,191.10
  6. Step 6: Final answer
    x = 392,965.31

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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.