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Finding the Fourth Proportional to 5,079,843.05, 7,620,531.23 and 1,485,158.63

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Solution

The fourth proportional to 5,079,843.05, 7,620,531.23 and 1,485,158.63 is: 2,227,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079,843.05 : 7,620,531.23 = 1,485,158.63 : x
  2. Step 2: Convert to fraction form
    5,079,843.05/7,620,531.23 = 1,485,158.63/x
  3. Step 3: Cross multiply
    5,079,843.05x = 7,620,531.23 × 1,485,158.63
  4. Step 4: Simplify right side
    5,079,843.05x = 11,317,697,687,029.26
  5. Step 5: Solve for x
    x = 11,317,697,687,029.26/5,079,843.05
  6. Step 6: Final answer
    x = 2,227,962.08

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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.