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Finding the Fourth Proportional to 326,997.96, 451,258.74 and 191,039.64

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Solution

The fourth proportional to 326,997.96, 451,258.74 and 191,039.64 is: 263,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,997.96 : 451,258.74 = 191,039.64 : x
  2. Step 2: Convert to fraction form
    326,997.96/451,258.74 = 191,039.64/x
  3. Step 3: Cross multiply
    326,997.96x = 451,258.74 × 191,039.64
  4. Step 4: Simplify right side
    326,997.96x = 86,208,307,236.45
  5. Step 5: Solve for x
    x = 86,208,307,236.45/326,997.96
  6. Step 6: Final answer
    x = 263,635.61

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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.