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Finding the Third Proportional to 873,218 and 1,879,231

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Solution

The third proportional to 873,218 and 1,879,231 is: 4,044,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,218 : 1,879,231 = 1,879,231 : x
  2. Step 2: Convert to fraction form
    873,218/1,879,231 = 1,879,231/x
  3. Step 3: Cross multiply
    873,218x = 1,879,231 × 1,879,231
  4. Step 4: Simplify right side
    873,218x = 3,531,509,151,361
  5. Step 5: Solve for x
    x = 3,531,509,151,361/873,218
  6. Step 6: Final answer
    x = 4,044,246.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.