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Finding the Fourth Proportional to 627,851.80, 941,777.70 and 253,682.20

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Solution

The fourth proportional to 627,851.80, 941,777.70 and 253,682.20 is: 380,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,851.80 : 941,777.70 = 253,682.20 : x
  2. Step 2: Convert to fraction form
    627,851.80/941,777.70 = 253,682.20/x
  3. Step 3: Cross multiply
    627,851.80x = 941,777.70 × 253,682.20
  4. Step 4: Simplify right side
    627,851.80x = 238,912,238,846.94
  5. Step 5: Solve for x
    x = 238,912,238,846.94/627,851.80
  6. Step 6: Final answer
    x = 380,523.30

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Double scale
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Similar ratio
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1.5x scale

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.