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Finding the Fourth Proportional to 322,871.58, 445,551.60 and 177,663.78

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Solution

The fourth proportional to 322,871.58, 445,551.60 and 177,663.78 is: 245,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,871.58 : 445,551.60 = 177,663.78 : x
  2. Step 2: Convert to fraction form
    322,871.58/445,551.60 = 177,663.78/x
  3. Step 3: Cross multiply
    322,871.58x = 445,551.60 × 177,663.78
  4. Step 4: Simplify right side
    322,871.58x = 79,158,382,361.04
  5. Step 5: Solve for x
    x = 79,158,382,361.04/322,871.58
  6. Step 6: Final answer
    x = 245,169.87

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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.