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Finding the Third Proportional to 178,813 and 383,587

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Solution

The third proportional to 178,813 and 383,587 is: 822,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,813 : 383,587 = 383,587 : x
  2. Step 2: Convert to fraction form
    178,813/383,587 = 383,587/x
  3. Step 3: Cross multiply
    178,813x = 383,587 × 383,587
  4. Step 4: Simplify right side
    178,813x = 147,138,986,569
  5. Step 5: Solve for x
    x = 147,138,986,569/178,813
  6. Step 6: Final answer
    x = 822,865.15

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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.