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Finding the Fourth Proportional to 406,836.44, 561,467.44 and 225,605.20

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Solution

The fourth proportional to 406,836.44, 561,467.44 and 225,605.20 is: 311,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,836.44 : 561,467.44 = 225,605.20 : x
  2. Step 2: Convert to fraction form
    406,836.44/561,467.44 = 225,605.20/x
  3. Step 3: Cross multiply
    406,836.44x = 561,467.44 × 225,605.20
  4. Step 4: Simplify right side
    406,836.44x = 126,669,974,094.69
  5. Step 5: Solve for x
    x = 126,669,974,094.69/406,836.44
  6. Step 6: Final answer
    x = 311,353.56

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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.