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Finding the Fourth Proportional to 323,999.36, 447,112.76 and 178,818.80

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Solution

The fourth proportional to 323,999.36, 447,112.76 and 178,818.80 is: 246,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,999.36 : 447,112.76 = 178,818.80 : x
  2. Step 2: Convert to fraction form
    323,999.36/447,112.76 = 178,818.80/x
  3. Step 3: Cross multiply
    323,999.36x = 447,112.76 × 178,818.80
  4. Step 4: Simplify right side
    323,999.36x = 79,952,167,207.89
  5. Step 5: Solve for x
    x = 79,952,167,207.89/323,999.36
  6. Step 6: Final answer
    x = 246,766.44

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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.