Home / 783,909.54-1,080,635.31-611,632.26

Finding the Fourth Proportional to 783,909.54, 1,080,635.31 and 611,632.26

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Solution

The fourth proportional to 783,909.54, 1,080,635.31 and 611,632.26 is: 843,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,909.54 : 1,080,635.31 = 611,632.26 : x
  2. Step 2: Convert to fraction form
    783,909.54/1,080,635.31 = 611,632.26/x
  3. Step 3: Cross multiply
    783,909.54x = 1,080,635.31 × 611,632.26
  4. Step 4: Simplify right side
    783,909.54x = 660,951,416,891.10
  5. Step 5: Solve for x
    x = 660,951,416,891.10/783,909.54
  6. Step 6: Final answer
    x = 843,147.56

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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.