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Finding the Fourth Proportional to 2,650,716, 3,976,074 and 656,172

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Solution

The fourth proportional to 2,650,716, 3,976,074 and 656,172 is: 984,258

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650,716 : 3,976,074 = 656,172 : x
  2. Step 2: Convert to fraction form
    2,650,716/3,976,074 = 656,172/x
  3. Step 3: Cross multiply
    2,650,716x = 3,976,074 × 656,172
  4. Step 4: Simplify right side
    2,650,716x = 2,608,988,428,728
  5. Step 5: Solve for x
    x = 2,608,988,428,728/2,650,716
  6. Step 6: Final answer
    x = 984,258

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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.