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Finding the Fourth Proportional to 881,874, 1,322,811 and 217,026

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Solution

The fourth proportional to 881,874, 1,322,811 and 217,026 is: 325,539

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,874 : 1,322,811 = 217,026 : x
  2. Step 2: Convert to fraction form
    881,874/1,322,811 = 217,026/x
  3. Step 3: Cross multiply
    881,874x = 1,322,811 × 217,026
  4. Step 4: Simplify right side
    881,874x = 287,084,380,086
  5. Step 5: Solve for x
    x = 287,084,380,086/881,874
  6. Step 6: Final answer
    x = 325,539

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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.