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Finding the Fourth Proportional to 404,449.80, 606,383.10 and 264,287.40

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Solution

The fourth proportional to 404,449.80, 606,383.10 and 264,287.40 is: 396,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,449.80 : 606,383.10 = 264,287.40 : x
  2. Step 2: Convert to fraction form
    404,449.80/606,383.10 = 264,287.40/x
  3. Step 3: Cross multiply
    404,449.80x = 606,383.10 × 264,287.40
  4. Step 4: Simplify right side
    404,449.80x = 160,259,412,902.94
  5. Step 5: Solve for x
    x = 160,259,412,902.94/404,449.80
  6. Step 6: Final answer
    x = 396,240.55

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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.