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Finding the Fourth Proportional to 555,912.20, 767,241.11 and 351,982.04

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Solution

The fourth proportional to 555,912.20, 767,241.11 and 351,982.04 is: 485,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,912.20 : 767,241.11 = 351,982.04 : x
  2. Step 2: Convert to fraction form
    555,912.20/767,241.11 = 351,982.04/x
  3. Step 3: Cross multiply
    555,912.20x = 767,241.11 × 351,982.04
  4. Step 4: Simplify right side
    555,912.20x = 270,055,091,069.66
  5. Step 5: Solve for x
    x = 270,055,091,069.66/555,912.20
  6. Step 6: Final answer
    x = 485,787.31

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1.5x scale

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.