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Finding the Fourth Proportional to 4,865,991.70, 6,714,797.18 and 2,690,404.18

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Solution

The fourth proportional to 4,865,991.70, 6,714,797.18 and 2,690,404.18 is: 3,712,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865,991.70 : 6,714,797.18 = 2,690,404.18 : x
  2. Step 2: Convert to fraction form
    4,865,991.70/6,714,797.18 = 2,690,404.18/x
  3. Step 3: Cross multiply
    4,865,991.70x = 6,714,797.18 × 2,690,404.18
  4. Step 4: Simplify right side
    4,865,991.70x = 18,065,518,400,924.21
  5. Step 5: Solve for x
    x = 18,065,518,400,924.21/4,865,991.70
  6. Step 6: Final answer
    x = 3,712,607.73

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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.