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Finding the Fourth Proportional to 322,842.78, 445,520.93 and 177,657.44

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Solution

The fourth proportional to 322,842.78, 445,520.93 and 177,657.44 is: 245,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,842.78 : 445,520.93 = 177,657.44 : x
  2. Step 2: Convert to fraction form
    322,842.78/445,520.93 = 177,657.44/x
  3. Step 3: Cross multiply
    322,842.78x = 445,520.93 × 177,657.44
  4. Step 4: Simplify right side
    322,842.78x = 79,150,104,774.33
  5. Step 5: Solve for x
    x = 79,150,104,774.33/322,842.78
  6. Step 6: Final answer
    x = 245,166.10

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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.