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Finding the Third Proportional to 414,399.75 and 623,137.50

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Solution

The third proportional to 414,399.75 and 623,137.50 is: 937,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,399.75 : 623,137.50 = 623,137.50 : x
  2. Step 2: Convert to fraction form
    414,399.75/623,137.50 = 623,137.50/x
  3. Step 3: Cross multiply
    414,399.75x = 623,137.50 × 623,137.50
  4. Step 4: Simplify right side
    414,399.75x = 388,300,343,906.25
  5. Step 5: Solve for x
    x = 388,300,343,906.25/414,399.75
  6. Step 6: Final answer
    x = 937,018.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.