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Finding the Fourth Proportional to 2,646,648.60, 3,969,972.90 and 2,414,405.40

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Solution

The fourth proportional to 2,646,648.60, 3,969,972.90 and 2,414,405.40 is: 3,621,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646,648.60 : 3,969,972.90 = 2,414,405.40 : x
  2. Step 2: Convert to fraction form
    2,646,648.60/3,969,972.90 = 2,414,405.40/x
  3. Step 3: Cross multiply
    2,646,648.60x = 3,969,972.90 × 2,414,405.40
  4. Step 4: Simplify right side
    2,646,648.60x = 9,585,124,007,613.66
  5. Step 5: Solve for x
    x = 9,585,124,007,613.66/2,646,648.60
  6. Step 6: Final answer
    x = 3,621,608.10

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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.