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Finding the Fourth Proportional to 6,489,676.44, 8,956,951.56 and 4,169,469.40

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Solution

The fourth proportional to 6,489,676.44, 8,956,951.56 and 4,169,469.40 is: 5,754,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,676.44 : 8,956,951.56 = 4,169,469.40 : x
  2. Step 2: Convert to fraction form
    6,489,676.44/8,956,951.56 = 4,169,469.40/x
  3. Step 3: Cross multiply
    6,489,676.44x = 8,956,951.56 × 4,169,469.40
  4. Step 4: Simplify right side
    6,489,676.44x = 37,345,735,446,702.27
  5. Step 5: Solve for x
    x = 37,345,735,446,702.27/6,489,676.44
  6. Step 6: Final answer
    x = 5,754,637.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.