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Finding the Fourth Proportional to 468,574.20, 702,755.90 and 215,612.04

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Solution

The fourth proportional to 468,574.20, 702,755.90 and 215,612.04 is: 323,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,574.20 : 702,755.90 = 215,612.04 : x
  2. Step 2: Convert to fraction form
    468,574.20/702,755.90 = 215,612.04/x
  3. Step 3: Cross multiply
    468,574.20x = 702,755.90 × 215,612.04
  4. Step 4: Simplify right side
    468,574.20x = 151,522,633,221.04
  5. Step 5: Solve for x
    x = 151,522,633,221.04/468,574.20
  6. Step 6: Final answer
    x = 323,369.56

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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.