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Finding the Fourth Proportional to 328,893.72, 453,874.72 and 177,990.72

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Solution

The fourth proportional to 328,893.72, 453,874.72 and 177,990.72 is: 245,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,893.72 : 453,874.72 = 177,990.72 : x
  2. Step 2: Convert to fraction form
    328,893.72/453,874.72 = 177,990.72/x
  3. Step 3: Cross multiply
    328,893.72x = 453,874.72 × 177,990.72
  4. Step 4: Simplify right side
    328,893.72x = 80,785,488,202.60
  5. Step 5: Solve for x
    x = 80,785,488,202.60/328,893.72
  6. Step 6: Final answer
    x = 245,627.94

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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.