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Finding the Third Proportional to 316,993.50 and 470,250

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Solution

The third proportional to 316,993.50 and 470,250 is: 697,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,993.50 : 470,250 = 470,250 : x
  2. Step 2: Convert to fraction form
    316,993.50/470,250 = 470,250/x
  3. Step 3: Cross multiply
    316,993.50x = 470,250 × 470,250
  4. Step 4: Simplify right side
    316,993.50x = 221,135,062,500
  5. Step 5: Solve for x
    x = 221,135,062,500/316,993.50
  6. Step 6: Final answer
    x = 697,601.25

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.