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Finding the Fourth Proportional to 5,984,747.30, 8,978,381.87 and 1,940,919.79

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Solution

The fourth proportional to 5,984,747.30, 8,978,381.87 and 1,940,919.79 is: 2,911,788.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,984,747.30 : 8,978,381.87 = 1,940,919.79 : x
  2. Step 2: Convert to fraction form
    5,984,747.30/8,978,381.87 = 1,940,919.79/x
  3. Step 3: Cross multiply
    5,984,747.30x = 8,978,381.87 × 1,940,919.79
  4. Step 4: Simplify right side
    5,984,747.30x = 17,426,319,069,735.48
  5. Step 5: Solve for x
    x = 17,426,319,069,735.48/5,984,747.30
  6. Step 6: Final answer
    x = 2,911,788.62

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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.