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Finding the Fourth Proportional to 322,996.31, 445,730.55 and 179,756.31

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Solution

The fourth proportional to 322,996.31, 445,730.55 and 179,756.31 is: 248,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,996.31 : 445,730.55 = 179,756.31 : x
  2. Step 2: Convert to fraction form
    322,996.31/445,730.55 = 179,756.31/x
  3. Step 3: Cross multiply
    322,996.31x = 445,730.55 × 179,756.31
  4. Step 4: Simplify right side
    322,996.31x = 80,122,878,922.27
  5. Step 5: Solve for x
    x = 80,122,878,922.27/322,996.31
  6. Step 6: Final answer
    x = 248,061.29

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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.