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Finding the Fourth Proportional to 321,232.56, 443,299.50 and 177,992.25

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Solution

The fourth proportional to 321,232.56, 443,299.50 and 177,992.25 is: 245,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,232.56 : 443,299.50 = 177,992.25 : x
  2. Step 2: Convert to fraction form
    321,232.56/443,299.50 = 177,992.25/x
  3. Step 3: Cross multiply
    321,232.56x = 443,299.50 × 177,992.25
  4. Step 4: Simplify right side
    321,232.56x = 78,903,875,428.88
  5. Step 5: Solve for x
    x = 78,903,875,428.88/321,232.56
  6. Step 6: Final answer
    x = 245,628.51

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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.