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Finding the Fourth Proportional to 406,995.23, 561,644.69 and 234,899.70

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Solution

The fourth proportional to 406,995.23, 561,644.69 and 234,899.70 is: 324,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,995.23 : 561,644.69 = 234,899.70 : x
  2. Step 2: Convert to fraction form
    406,995.23/561,644.69 = 234,899.70/x
  3. Step 3: Cross multiply
    406,995.23x = 561,644.69 × 234,899.70
  4. Step 4: Simplify right side
    406,995.23x = 131,930,165,906.93
  5. Step 5: Solve for x
    x = 131,930,165,906.93/406,995.23
  6. Step 6: Final answer
    x = 324,156.54

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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.