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Finding the Fourth Proportional to 443,329.90, 622,236.50 and 443,329.90

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Solution

The fourth proportional to 443,329.90, 622,236.50 and 443,329.90 is: 622,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,329.90 : 622,236.50 = 443,329.90 : x
  2. Step 2: Convert to fraction form
    443,329.90/622,236.50 = 443,329.90/x
  3. Step 3: Cross multiply
    443,329.90x = 622,236.50 × 443,329.90
  4. Step 4: Simplify right side
    443,329.90x = 275,856,045,321.35
  5. Step 5: Solve for x
    x = 275,856,045,321.35/443,329.90
  6. Step 6: Final answer
    x = 622,236.50

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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.