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Finding the Fourth Proportional to 406,922.20, 610,383.30 and 265,204.60

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Solution

The fourth proportional to 406,922.20, 610,383.30 and 265,204.60 is: 397,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,922.20 : 610,383.30 = 265,204.60 : x
  2. Step 2: Convert to fraction form
    406,922.20/610,383.30 = 265,204.60/x
  3. Step 3: Cross multiply
    406,922.20x = 610,383.30 × 265,204.60
  4. Step 4: Simplify right side
    406,922.20x = 161,876,458,923.18
  5. Step 5: Solve for x
    x = 161,876,458,923.18/406,922.20
  6. Step 6: Final answer
    x = 397,806.90

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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.