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Finding the Third Proportional to 368,755 and 556,503

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Solution

The third proportional to 368,755 and 556,503 is: 839,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,755 : 556,503 = 556,503 : x
  2. Step 2: Convert to fraction form
    368,755/556,503 = 556,503/x
  3. Step 3: Cross multiply
    368,755x = 556,503 × 556,503
  4. Step 4: Simplify right side
    368,755x = 309,695,589,009
  5. Step 5: Solve for x
    x = 309,695,589,009/368,755
  6. Step 6: Final answer
    x = 839,841.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.