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Finding the Fourth Proportional to 323,070.31, 445,839.56 and 195,657.31

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Solution

The fourth proportional to 323,070.31, 445,839.56 and 195,657.31 is: 270,008.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,070.31 : 445,839.56 = 195,657.31 : x
  2. Step 2: Convert to fraction form
    323,070.31/445,839.56 = 195,657.31/x
  3. Step 3: Cross multiply
    323,070.31x = 445,839.56 × 195,657.31
  4. Step 4: Simplify right side
    323,070.31x = 87,231,769,001.18
  5. Step 5: Solve for x
    x = 87,231,769,001.18/323,070.31
  6. Step 6: Final answer
    x = 270,008.62

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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.