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Finding the Fourth Proportional to 5,979,415.20, 8,969,122.80 and 2,194,374.30

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Solution

The fourth proportional to 5,979,415.20, 8,969,122.80 and 2,194,374.30 is: 3,291,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979,415.20 : 8,969,122.80 = 2,194,374.30 : x
  2. Step 2: Convert to fraction form
    5,979,415.20/8,969,122.80 = 2,194,374.30/x
  3. Step 3: Cross multiply
    5,979,415.20x = 8,969,122.80 × 2,194,374.30
  4. Step 4: Simplify right side
    5,979,415.20x = 19,681,612,565,864.04
  5. Step 5: Solve for x
    x = 19,681,612,565,864.04/5,979,415.20
  6. Step 6: Final answer
    x = 3,291,561.45

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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.