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Finding the Fourth Proportional to 443,331.90, 622,239.30 and 443,331.90

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Solution

The fourth proportional to 443,331.90, 622,239.30 and 443,331.90 is: 622,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,331.90 : 622,239.30 = 443,331.90 : x
  2. Step 2: Convert to fraction form
    443,331.90/622,239.30 = 443,331.90/x
  3. Step 3: Cross multiply
    443,331.90x = 622,239.30 × 443,331.90
  4. Step 4: Simplify right side
    443,331.90x = 275,858,531,123.67
  5. Step 5: Solve for x
    x = 275,858,531,123.67/443,331.90
  6. Step 6: Final answer
    x = 622,239.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.