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Finding the Fourth Proportional to 321,793.67, 444,045.90 and 190,948.77

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Solution

The fourth proportional to 321,793.67, 444,045.90 and 190,948.77 is: 263,491.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,793.67 : 444,045.90 = 190,948.77 : x
  2. Step 2: Convert to fraction form
    321,793.67/444,045.90 = 190,948.77/x
  3. Step 3: Cross multiply
    321,793.67x = 444,045.90 × 190,948.77
  4. Step 4: Simplify right side
    321,793.67x = 84,790,018,428.54
  5. Step 5: Solve for x
    x = 84,790,018,428.54/321,793.67
  6. Step 6: Final answer
    x = 263,491.88

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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.