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Finding the Fourth Proportional to 321,760.77, 444,029.94 and 178,520.48

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Solution

The fourth proportional to 321,760.77, 444,029.94 and 178,520.48 is: 246,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,760.77 : 444,029.94 = 178,520.48 : x
  2. Step 2: Convert to fraction form
    321,760.77/444,029.94 = 178,520.48/x
  3. Step 3: Cross multiply
    321,760.77x = 444,029.94 × 178,520.48
  4. Step 4: Simplify right side
    321,760.77x = 79,268,435,803.02
  5. Step 5: Solve for x
    x = 79,268,435,803.02/321,760.77
  6. Step 6: Final answer
    x = 246,358.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.