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Finding the Third Proportional to 175,542 and 384,420

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Solution

The third proportional to 175,542 and 384,420 is: 841,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,542 : 384,420 = 384,420 : x
  2. Step 2: Convert to fraction form
    175,542/384,420 = 384,420/x
  3. Step 3: Cross multiply
    175,542x = 384,420 × 384,420
  4. Step 4: Simplify right side
    175,542x = 147,778,736,400
  5. Step 5: Solve for x
    x = 147,778,736,400/175,542
  6. Step 6: Final answer
    x = 841,842.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.