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Finding the Fourth Proportional to 321,737.68, 444,019 and 185,777.36

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Solution

The fourth proportional to 321,737.68, 444,019 and 185,777.36 is: 256,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,737.68 : 444,019 = 185,777.36 : x
  2. Step 2: Convert to fraction form
    321,737.68/444,019 = 185,777.36/x
  3. Step 3: Cross multiply
    321,737.68x = 444,019 × 185,777.36
  4. Step 4: Simplify right side
    321,737.68x = 82,488,677,609.84
  5. Step 5: Solve for x
    x = 82,488,677,609.84/321,737.68
  6. Step 6: Final answer
    x = 256,384.88

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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.