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Finding the Fourth Proportional to 322,688.88, 445,321.53 and 177,500.97

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Solution

The fourth proportional to 322,688.88, 445,321.53 and 177,500.97 is: 244,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,688.88 : 445,321.53 = 177,500.97 : x
  2. Step 2: Convert to fraction form
    322,688.88/445,321.53 = 177,500.97/x
  3. Step 3: Cross multiply
    322,688.88x = 445,321.53 × 177,500.97
  4. Step 4: Simplify right side
    322,688.88x = 79,045,003,536.88
  5. Step 5: Solve for x
    x = 79,045,003,536.88/322,688.88
  6. Step 6: Final answer
    x = 244,957.32

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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.