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Finding the Fourth Proportional to 2,019,978.55, 3,029,967.83 and 1,833,974.20

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Solution

The fourth proportional to 2,019,978.55, 3,029,967.83 and 1,833,974.20 is: 2,750,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,978.55 : 3,029,967.83 = 1,833,974.20 : x
  2. Step 2: Convert to fraction form
    2,019,978.55/3,029,967.83 = 1,833,974.20/x
  3. Step 3: Cross multiply
    2,019,978.55x = 3,029,967.83 × 1,833,974.20
  4. Step 4: Simplify right side
    2,019,978.55x = 5,556,882,827,049.99
  5. Step 5: Solve for x
    x = 5,556,882,827,049.99/2,019,978.55
  6. Step 6: Final answer
    x = 2,750,961.30

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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.