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Finding the Fourth Proportional to 256,997.89, 354,768.29 and 193,351.33

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Solution

The fourth proportional to 256,997.89, 354,768.29 and 193,351.33 is: 266,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,997.89 : 354,768.29 = 193,351.33 : x
  2. Step 2: Convert to fraction form
    256,997.89/354,768.29 = 193,351.33/x
  3. Step 3: Cross multiply
    256,997.89x = 354,768.29 × 193,351.33
  4. Step 4: Simplify right side
    256,997.89x = 68,594,920,713.33
  5. Step 5: Solve for x
    x = 68,594,920,713.33/256,997.89
  6. Step 6: Final answer
    x = 266,908.50

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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.