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Finding the Fourth Proportional to 406,667.26, 561,192.29 and 225,377.60

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Solution

The fourth proportional to 406,667.26, 561,192.29 and 225,377.60 is: 311,016.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,667.26 : 561,192.29 = 225,377.60 : x
  2. Step 2: Convert to fraction form
    406,667.26/561,192.29 = 225,377.60/x
  3. Step 3: Cross multiply
    406,667.26x = 561,192.29 × 225,377.60
  4. Step 4: Simplify right side
    406,667.26x = 126,480,171,999.97
  5. Step 5: Solve for x
    x = 126,480,171,999.97/406,667.26
  6. Step 6: Final answer
    x = 311,016.36

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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.