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Finding the Fourth Proportional to 321,856.56, 444,154.20 and 178,614.48

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Solution

The fourth proportional to 321,856.56, 444,154.20 and 178,614.48 is: 246,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,856.56 : 444,154.20 = 178,614.48 : x
  2. Step 2: Convert to fraction form
    321,856.56/444,154.20 = 178,614.48/x
  3. Step 3: Cross multiply
    321,856.56x = 444,154.20 × 178,614.48
  4. Step 4: Simplify right side
    321,856.56x = 79,332,371,472.82
  5. Step 5: Solve for x
    x = 79,332,371,472.82/321,856.56
  6. Step 6: Final answer
    x = 246,483.62

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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.