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Finding the Fourth Proportional to 322,615.99, 445,221.50 and 177,433

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Solution

The fourth proportional to 322,615.99, 445,221.50 and 177,433 is: 244,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,615.99 : 445,221.50 = 177,433 : x
  2. Step 2: Convert to fraction form
    322,615.99/445,221.50 = 177,433/x
  3. Step 3: Cross multiply
    322,615.99x = 445,221.50 × 177,433
  4. Step 4: Simplify right side
    322,615.99x = 78,996,986,409.50
  5. Step 5: Solve for x
    x = 78,996,986,409.50/322,615.99
  6. Step 6: Final answer
    x = 244,863.83

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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.