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Finding the Fourth Proportional to 322,698.87, 445,335.21 and 177,510.78

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Solution

The fourth proportional to 322,698.87, 445,335.21 and 177,510.78 is: 244,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,698.87 : 445,335.21 = 177,510.78 : x
  2. Step 2: Convert to fraction form
    322,698.87/445,335.21 = 177,510.78/x
  3. Step 3: Cross multiply
    322,698.87x = 445,335.21 × 177,510.78
  4. Step 4: Simplify right side
    322,698.87x = 79,051,800,488.56
  5. Step 5: Solve for x
    x = 79,051,800,488.56/322,698.87
  6. Step 6: Final answer
    x = 244,970.80

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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.