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Finding the Fourth Proportional to 5,393,784.90, 8,085,234.15 and 2,693,957.70

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Solution

The fourth proportional to 5,393,784.90, 8,085,234.15 and 2,693,957.70 is: 4,038,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393,784.90 : 8,085,234.15 = 2,693,957.70 : x
  2. Step 2: Convert to fraction form
    5,393,784.90/8,085,234.15 = 2,693,957.70/x
  3. Step 3: Cross multiply
    5,393,784.90x = 8,085,234.15 × 2,693,957.70
  4. Step 4: Simplify right side
    5,393,784.90x = 21,781,278,794,695.46
  5. Step 5: Solve for x
    x = 21,781,278,794,695.46/5,393,784.90
  6. Step 6: Final answer
    x = 4,038,217.91

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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.