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Finding the Fourth Proportional to 482,102.37, 722,861.87 and 215,813.25

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Solution

The fourth proportional to 482,102.37, 722,861.87 and 215,813.25 is: 323,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,102.37 : 722,861.87 = 215,813.25 : x
  2. Step 2: Convert to fraction form
    482,102.37/722,861.87 = 215,813.25/x
  3. Step 3: Cross multiply
    482,102.37x = 722,861.87 × 215,813.25
  4. Step 4: Simplify right side
    482,102.37x = 156,003,168,386.71
  5. Step 5: Solve for x
    x = 156,003,168,386.71/482,102.37
  6. Step 6: Final answer
    x = 323,589.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.