Home / 718,057.99-990,942.14-412,190.25

Finding the Fourth Proportional to 718,057.99, 990,942.14 and 412,190.25

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Solution

The fourth proportional to 718,057.99, 990,942.14 and 412,190.25 is: 568,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,057.99 : 990,942.14 = 412,190.25 : x
  2. Step 2: Convert to fraction form
    718,057.99/990,942.14 = 412,190.25/x
  3. Step 3: Cross multiply
    718,057.99x = 990,942.14 × 412,190.25
  4. Step 4: Simplify right side
    718,057.99x = 408,456,688,422.14
  5. Step 5: Solve for x
    x = 408,456,688,422.14/718,057.99
  6. Step 6: Final answer
    x = 568,835.24

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Double scale
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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.