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Finding the Fourth Proportional to 322,741.62, 445,349.34 and 179,478.54

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Solution

The fourth proportional to 322,741.62, 445,349.34 and 179,478.54 is: 247,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,741.62 : 445,349.34 = 179,478.54 : x
  2. Step 2: Convert to fraction form
    322,741.62/445,349.34 = 179,478.54/x
  3. Step 3: Cross multiply
    322,741.62x = 445,349.34 × 179,478.54
  4. Step 4: Simplify right side
    322,741.62x = 79,930,649,333.16
  5. Step 5: Solve for x
    x = 79,930,649,333.16/322,741.62
  6. Step 6: Final answer
    x = 247,661.42

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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.