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Finding the Fourth Proportional to 1,997,992.17, 2,996,728.55 and 799,926.23

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Solution

The fourth proportional to 1,997,992.17, 2,996,728.55 and 799,926.23 is: 1,199,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,992.17 : 2,996,728.55 = 799,926.23 : x
  2. Step 2: Convert to fraction form
    1,997,992.17/2,996,728.55 = 799,926.23/x
  3. Step 3: Cross multiply
    1,997,992.17x = 2,996,728.55 × 799,926.23
  4. Step 4: Simplify right side
    1,997,992.17x = 2,397,161,777,826.78
  5. Step 5: Solve for x
    x = 2,397,161,777,826.78/1,997,992.17
  6. Step 6: Final answer
    x = 1,199,785.37

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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.