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Finding the Fourth Proportional to 482,106.21, 665,311.98 and 275,401.97

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Solution

The fourth proportional to 482,106.21, 665,311.98 and 275,401.97 is: 380,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,106.21 : 665,311.98 = 275,401.97 : x
  2. Step 2: Convert to fraction form
    482,106.21/665,311.98 = 275,401.97/x
  3. Step 3: Cross multiply
    482,106.21x = 665,311.98 × 275,401.97
  4. Step 4: Simplify right side
    482,106.21x = 183,228,229,124.96
  5. Step 5: Solve for x
    x = 183,228,229,124.96/482,106.21
  6. Step 6: Final answer
    x = 380,057.80

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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.