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Finding the Fourth Proportional to 415,926.80, 622,723.80 and 404,262.80

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Solution

The fourth proportional to 415,926.80, 622,723.80 and 404,262.80 is: 605,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,926.80 : 622,723.80 = 404,262.80 : x
  2. Step 2: Convert to fraction form
    415,926.80/622,723.80 = 404,262.80/x
  3. Step 3: Cross multiply
    415,926.80x = 622,723.80 × 404,262.80
  4. Step 4: Simplify right side
    415,926.80x = 251,744,067,014.64
  5. Step 5: Solve for x
    x = 251,744,067,014.64/415,926.80
  6. Step 6: Final answer
    x = 605,260.51

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1.5x scale

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.