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Finding the Third Proportional to 239,641 and 375,917

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Solution

The third proportional to 239,641 and 375,917 is: 589,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,641 : 375,917 = 375,917 : x
  2. Step 2: Convert to fraction form
    239,641/375,917 = 375,917/x
  3. Step 3: Cross multiply
    239,641x = 375,917 × 375,917
  4. Step 4: Simplify right side
    239,641x = 141,313,590,889
  5. Step 5: Solve for x
    x = 141,313,590,889/239,641
  6. Step 6: Final answer
    x = 589,688.70

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.