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Finding the Third Proportional to 175,428 and 385,848

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Solution

The third proportional to 175,428 and 385,848 is: 848,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,428 : 385,848 = 385,848 : x
  2. Step 2: Convert to fraction form
    175,428/385,848 = 385,848/x
  3. Step 3: Cross multiply
    175,428x = 385,848 × 385,848
  4. Step 4: Simplify right side
    175,428x = 148,878,679,104
  5. Step 5: Solve for x
    x = 148,878,679,104/175,428
  6. Step 6: Final answer
    x = 848,659.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.