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Finding the Fourth Proportional to 397,797.94, 548,962.68 and 216,512.04

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Solution

The fourth proportional to 397,797.94, 548,962.68 and 216,512.04 is: 298,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,797.94 : 548,962.68 = 216,512.04 : x
  2. Step 2: Convert to fraction form
    397,797.94/548,962.68 = 216,512.04/x
  3. Step 3: Cross multiply
    397,797.94x = 548,962.68 × 216,512.04
  4. Step 4: Simplify right side
    397,797.94x = 118,857,029,730.67
  5. Step 5: Solve for x
    x = 118,857,029,730.67/397,797.94
  6. Step 6: Final answer
    x = 298,787.44

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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.