Home / 713,799.75-985,131.15-411,993.75

Finding the Fourth Proportional to 713,799.75, 985,131.15 and 411,993.75

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Solution

The fourth proportional to 713,799.75, 985,131.15 and 411,993.75 is: 568,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,799.75 : 985,131.15 = 411,993.75 : x
  2. Step 2: Convert to fraction form
    713,799.75/985,131.15 = 411,993.75/x
  3. Step 3: Cross multiply
    713,799.75x = 985,131.15 × 411,993.75
  4. Step 4: Simplify right side
    713,799.75x = 405,867,876,730.31
  5. Step 5: Solve for x
    x = 405,867,876,730.31/713,799.75
  6. Step 6: Final answer
    x = 568,601.88

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Similar ratio
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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.