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Finding the Fourth Proportional to 322,752.48, 445,367.22 and 186,759.30

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Solution

The fourth proportional to 322,752.48, 445,367.22 and 186,759.30 is: 257,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,752.48 : 445,367.22 = 186,759.30 : x
  2. Step 2: Convert to fraction form
    322,752.48/445,367.22 = 186,759.30/x
  3. Step 3: Cross multiply
    322,752.48x = 445,367.22 × 186,759.30
  4. Step 4: Simplify right side
    322,752.48x = 83,176,470,250.15
  5. Step 5: Solve for x
    x = 83,176,470,250.15/322,752.48
  6. Step 6: Final answer
    x = 257,709.78

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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.