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Finding the Fourth Proportional to 3,214,612.08, 4,821,801.12 and 1,296,350.64

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Solution

The fourth proportional to 3,214,612.08, 4,821,801.12 and 1,296,350.64 is: 1,944,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214,612.08 : 4,821,801.12 = 1,296,350.64 : x
  2. Step 2: Convert to fraction form
    3,214,612.08/4,821,801.12 = 1,296,350.64/x
  3. Step 3: Cross multiply
    3,214,612.08x = 4,821,801.12 × 1,296,350.64
  4. Step 4: Simplify right side
    3,214,612.08x = 6,250,744,967,864.72
  5. Step 5: Solve for x
    x = 6,250,744,967,864.72/3,214,612.08
  6. Step 6: Final answer
    x = 1,944,478.78

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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.