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Finding the Third Proportional to 153,218 and 336,622

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Solution

The third proportional to 153,218 and 336,622 is: 739,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,218 : 336,622 = 336,622 : x
  2. Step 2: Convert to fraction form
    153,218/336,622 = 336,622/x
  3. Step 3: Cross multiply
    153,218x = 336,622 × 336,622
  4. Step 4: Simplify right side
    153,218x = 113,314,370,884
  5. Step 5: Solve for x
    x = 113,314,370,884/153,218
  6. Step 6: Final answer
    x = 739,563.05

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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.