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Finding the Fourth Proportional to 6,354,772.79, 8,769,648.77 and 3,454,161.86

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Solution

The fourth proportional to 6,354,772.79, 8,769,648.77 and 3,454,161.86 is: 4,766,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,354,772.79 : 8,769,648.77 = 3,454,161.86 : x
  2. Step 2: Convert to fraction form
    6,354,772.79/8,769,648.77 = 3,454,161.86/x
  3. Step 3: Cross multiply
    6,354,772.79x = 8,769,648.77 × 3,454,161.86
  4. Step 4: Simplify right side
    6,354,772.79x = 30,291,786,245,810.86
  5. Step 5: Solve for x
    x = 30,291,786,245,810.86/6,354,772.79
  6. Step 6: Final answer
    x = 4,766,777.24

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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.