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Finding the Fourth Proportional to 500,887.75, 751,375.38 and 126,910.75

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Solution

The fourth proportional to 500,887.75, 751,375.38 and 126,910.75 is: 190,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,887.75 : 751,375.38 = 126,910.75 : x
  2. Step 2: Convert to fraction form
    500,887.75/751,375.38 = 126,910.75/x
  3. Step 3: Cross multiply
    500,887.75x = 751,375.38 × 126,910.75
  4. Step 4: Simplify right side
    500,887.75x = 95,357,613,007.34
  5. Step 5: Solve for x
    x = 95,357,613,007.34/500,887.75
  6. Step 6: Final answer
    x = 190,377.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.