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Finding the Fourth Proportional to 5,197,546.18, 7,790,821.50 and 1,957,682.01

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Solution

The fourth proportional to 5,197,546.18, 7,790,821.50 and 1,957,682.01 is: 2,934,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,546.18 : 7,790,821.50 = 1,957,682.01 : x
  2. Step 2: Convert to fraction form
    5,197,546.18/7,790,821.50 = 1,957,682.01/x
  3. Step 3: Cross multiply
    5,197,546.18x = 7,790,821.50 × 1,957,682.01
  4. Step 4: Simplify right side
    5,197,546.18x = 15,251,951,093,671.21
  5. Step 5: Solve for x
    x = 15,251,951,093,671.21/5,197,546.18
  6. Step 6: Final answer
    x = 2,934,452.25

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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.