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Finding the Fourth Proportional to 444,374.98, 666,355.11 and 257,439.94

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Solution

The fourth proportional to 444,374.98, 666,355.11 and 257,439.94 is: 386,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,374.98 : 666,355.11 = 257,439.94 : x
  2. Step 2: Convert to fraction form
    444,374.98/666,355.11 = 257,439.94/x
  3. Step 3: Cross multiply
    444,374.98x = 666,355.11 × 257,439.94
  4. Step 4: Simplify right side
    444,374.98x = 171,546,419,537.09
  5. Step 5: Solve for x
    x = 171,546,419,537.09/444,374.98
  6. Step 6: Final answer
    x = 386,039.78

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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.