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Finding the Third Proportional to 303,718.50 and 664,636.50

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Solution

The third proportional to 303,718.50 and 664,636.50 is: 1,454,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,718.50 : 664,636.50 = 664,636.50 : x
  2. Step 2: Convert to fraction form
    303,718.50/664,636.50 = 664,636.50/x
  3. Step 3: Cross multiply
    303,718.50x = 664,636.50 × 664,636.50
  4. Step 4: Simplify right side
    303,718.50x = 441,741,677,132.25
  5. Step 5: Solve for x
    x = 441,741,677,132.25/303,718.50
  6. Step 6: Final answer
    x = 1,454,444.42

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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.