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Finding the Fourth Proportional to 322,539.56, 445,116.01 and 177,356.39

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Solution

The fourth proportional to 322,539.56, 445,116.01 and 177,356.39 is: 244,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,539.56 : 445,116.01 = 177,356.39 : x
  2. Step 2: Convert to fraction form
    322,539.56/445,116.01 = 177,356.39/x
  3. Step 3: Cross multiply
    322,539.56x = 445,116.01 × 177,356.39
  4. Step 4: Simplify right side
    322,539.56x = 78,944,169,334.20
  5. Step 5: Solve for x
    x = 78,944,169,334.20/322,539.56
  6. Step 6: Final answer
    x = 244,758.10

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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.