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Finding the Third Proportional to 175,178 and 385,346

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Solution

The third proportional to 175,178 and 385,346 is: 847,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,178 : 385,346 = 385,346 : x
  2. Step 2: Convert to fraction form
    175,178/385,346 = 385,346/x
  3. Step 3: Cross multiply
    175,178x = 385,346 × 385,346
  4. Step 4: Simplify right side
    175,178x = 148,491,539,716
  5. Step 5: Solve for x
    x = 148,491,539,716/175,178
  6. Step 6: Final answer
    x = 847,660.89

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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.