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Finding the Fourth Proportional to 482,617.22, 665,944.88 and 321,576.26

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Solution

The fourth proportional to 482,617.22, 665,944.88 and 321,576.26 is: 443,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,617.22 : 665,944.88 = 321,576.26 : x
  2. Step 2: Convert to fraction form
    482,617.22/665,944.88 = 321,576.26/x
  3. Step 3: Cross multiply
    482,617.22x = 665,944.88 × 321,576.26
  4. Step 4: Simplify right side
    482,617.22x = 214,152,063,876.55
  5. Step 5: Solve for x
    x = 214,152,063,876.55/482,617.22
  6. Step 6: Final answer
    x = 443,730.67

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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.