Home / 641,727.82-885,591.39-355,252.69

Finding the Fourth Proportional to 641,727.82, 885,591.39 and 355,252.69

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Solution

The fourth proportional to 641,727.82, 885,591.39 and 355,252.69 is: 490,252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,727.82 : 885,591.39 = 355,252.69 : x
  2. Step 2: Convert to fraction form
    641,727.82/885,591.39 = 355,252.69/x
  3. Step 3: Cross multiply
    641,727.82x = 885,591.39 × 355,252.69
  4. Step 4: Simplify right side
    641,727.82x = 314,608,723,538.34
  5. Step 5: Solve for x
    x = 314,608,723,538.34/641,727.82
  6. Step 6: Final answer
    x = 490,252.59

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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.