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Finding the Fourth Proportional to 6,791,980.39, 9,372,982.35 and 3,694,530.49

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Solution

The fourth proportional to 6,791,980.39, 9,372,982.35 and 3,694,530.49 is: 5,098,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791,980.39 : 9,372,982.35 = 3,694,530.49 : x
  2. Step 2: Convert to fraction form
    6,791,980.39/9,372,982.35 = 3,694,530.49/x
  3. Step 3: Cross multiply
    6,791,980.39x = 9,372,982.35 × 3,694,530.49
  4. Step 4: Simplify right side
    6,791,980.39x = 34,628,769,074,306.85
  5. Step 5: Solve for x
    x = 34,628,769,074,306.85/6,791,980.39
  6. Step 6: Final answer
    x = 5,098,478.95

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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.