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Finding the Third Proportional to 400,285.50 and 608,676

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Solution

The third proportional to 400,285.50 and 608,676 is: 925,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,285.50 : 608,676 = 608,676 : x
  2. Step 2: Convert to fraction form
    400,285.50/608,676 = 608,676/x
  3. Step 3: Cross multiply
    400,285.50x = 608,676 × 608,676
  4. Step 4: Simplify right side
    400,285.50x = 370,486,472,976
  5. Step 5: Solve for x
    x = 370,486,472,976/400,285.50
  6. Step 6: Final answer
    x = 925,555.57

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.