Home / 783,723.68-1,081,550.56-439,635.92

Finding the Fourth Proportional to 783,723.68, 1,081,550.56 and 439,635.92

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Solution

The fourth proportional to 783,723.68, 1,081,550.56 and 439,635.92 is: 606,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,723.68 : 1,081,550.56 = 439,635.92 : x
  2. Step 2: Convert to fraction form
    783,723.68/1,081,550.56 = 439,635.92/x
  3. Step 3: Cross multiply
    783,723.68x = 1,081,550.56 × 439,635.92
  4. Step 4: Simplify right side
    783,723.68x = 475,488,475,472.12
  5. Step 5: Solve for x
    x = 475,488,475,472.12/783,723.68
  6. Step 6: Final answer
    x = 606,704.23

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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.