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Finding the Fourth Proportional to 321,028.61, 443,010.56 and 183,204.92

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Solution

The fourth proportional to 321,028.61, 443,010.56 and 183,204.92 is: 252,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,028.61 : 443,010.56 = 183,204.92 : x
  2. Step 2: Convert to fraction form
    321,028.61/443,010.56 = 183,204.92/x
  3. Step 3: Cross multiply
    321,028.61x = 443,010.56 × 183,204.92
  4. Step 4: Simplify right side
    321,028.61x = 81,161,711,072.88
  5. Step 5: Solve for x
    x = 81,161,711,072.88/321,028.61
  6. Step 6: Final answer
    x = 252,817.69

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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.