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Finding the Fourth Proportional to 606,996.56, 910,261.56 and 419,439.44

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Solution

The fourth proportional to 606,996.56, 910,261.56 and 419,439.44 is: 628,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,996.56 : 910,261.56 = 419,439.44 : x
  2. Step 2: Convert to fraction form
    606,996.56/910,261.56 = 419,439.44/x
  3. Step 3: Cross multiply
    606,996.56x = 910,261.56 × 419,439.44
  4. Step 4: Simplify right side
    606,996.56x = 381,799,598,979.93
  5. Step 5: Solve for x
    x = 381,799,598,979.93/606,996.56
  6. Step 6: Final answer
    x = 628,997.96

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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.