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Finding the Fourth Proportional to 297,067.72, 445,653.54 and 177,220.12

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Solution

The fourth proportional to 297,067.72, 445,653.54 and 177,220.12 is: 265,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,067.72 : 445,653.54 = 177,220.12 : x
  2. Step 2: Convert to fraction form
    297,067.72/445,653.54 = 177,220.12/x
  3. Step 3: Cross multiply
    297,067.72x = 445,653.54 × 177,220.12
  4. Step 4: Simplify right side
    297,067.72x = 78,978,773,837.22
  5. Step 5: Solve for x
    x = 78,978,773,837.22/297,067.72
  6. Step 6: Final answer
    x = 265,861.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.