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Finding the Fourth Proportional to 322,515.50, 445,032.70 and 177,297.33

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Solution

The fourth proportional to 322,515.50, 445,032.70 and 177,297.33 is: 244,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,515.50 : 445,032.70 = 177,297.33 : x
  2. Step 2: Convert to fraction form
    322,515.50/445,032.70 = 177,297.33/x
  3. Step 3: Cross multiply
    322,515.50x = 445,032.70 × 177,297.33
  4. Step 4: Simplify right side
    322,515.50x = 78,903,109,472.69
  5. Step 5: Solve for x
    x = 78,903,109,472.69/322,515.50
  6. Step 6: Final answer
    x = 244,649.05

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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.