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Finding the Fourth Proportional to 444,080.70, 666,121.05 and 257,456.70

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Solution

The fourth proportional to 444,080.70, 666,121.05 and 257,456.70 is: 386,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,080.70 : 666,121.05 = 257,456.70 : x
  2. Step 2: Convert to fraction form
    444,080.70/666,121.05 = 257,456.70/x
  3. Step 3: Cross multiply
    444,080.70x = 666,121.05 × 257,456.70
  4. Step 4: Simplify right side
    444,080.70x = 171,497,327,333.54
  5. Step 5: Solve for x
    x = 171,497,327,333.54/444,080.70
  6. Step 6: Final answer
    x = 386,185.05

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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.