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Finding the Fourth Proportional to 2,791,996.20, 4,187,994.30 and 2,791,996.20

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Solution

The fourth proportional to 2,791,996.20, 4,187,994.30 and 2,791,996.20 is: 4,187,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791,996.20 : 4,187,994.30 = 2,791,996.20 : x
  2. Step 2: Convert to fraction form
    2,791,996.20/4,187,994.30 = 2,791,996.20/x
  3. Step 3: Cross multiply
    2,791,996.20x = 4,187,994.30 × 2,791,996.20
  4. Step 4: Simplify right side
    2,791,996.20x = 11,692,864,171,221.66
  5. Step 5: Solve for x
    x = 11,692,864,171,221.66/2,791,996.20
  6. Step 6: Final answer
    x = 4,187,994.30

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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.