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Finding the Fourth Proportional to 484,302.80, 726,108.60 and 217,845.20

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Solution

The fourth proportional to 484,302.80, 726,108.60 and 217,845.20 is: 326,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,302.80 : 726,108.60 = 217,845.20 : x
  2. Step 2: Convert to fraction form
    484,302.80/726,108.60 = 217,845.20/x
  3. Step 3: Cross multiply
    484,302.80x = 726,108.60 × 217,845.20
  4. Step 4: Simplify right side
    484,302.80x = 158,179,273,188.72
  5. Step 5: Solve for x
    x = 158,179,273,188.72/484,302.80
  6. Step 6: Final answer
    x = 326,612.34

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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.