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Finding the Fourth Proportional to 322,805.50, 445,474.99 and 177,613.18

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Solution

The fourth proportional to 322,805.50, 445,474.99 and 177,613.18 is: 245,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,805.50 : 445,474.99 = 177,613.18 : x
  2. Step 2: Convert to fraction form
    322,805.50/445,474.99 = 177,613.18/x
  3. Step 3: Cross multiply
    322,805.50x = 445,474.99 × 177,613.18
  4. Step 4: Simplify right side
    322,805.50x = 79,122,229,945.60
  5. Step 5: Solve for x
    x = 79,122,229,945.60/322,805.50
  6. Step 6: Final answer
    x = 245,108.06

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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.