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Finding the Fourth Proportional to 321,999.71, 444,337.29 and 178,748.44

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Solution

The fourth proportional to 321,999.71, 444,337.29 and 178,748.44 is: 246,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,999.71 : 444,337.29 = 178,748.44 : x
  2. Step 2: Convert to fraction form
    321,999.71/444,337.29 = 178,748.44/x
  3. Step 3: Cross multiply
    321,999.71x = 444,337.29 × 178,748.44
  4. Step 4: Simplify right side
    321,999.71x = 79,424,596,310.48
  5. Step 5: Solve for x
    x = 79,424,596,310.48/321,999.71
  6. Step 6: Final answer
    x = 246,660.46

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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.