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Finding the Third Proportional to 202,879 and 433,900

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Solution

The third proportional to 202,879 and 433,900 is: 927,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,879 : 433,900 = 433,900 : x
  2. Step 2: Convert to fraction form
    202,879/433,900 = 433,900/x
  3. Step 3: Cross multiply
    202,879x = 433,900 × 433,900
  4. Step 4: Simplify right side
    202,879x = 188,269,210,000
  5. Step 5: Solve for x
    x = 188,269,210,000/202,879
  6. Step 6: Final answer
    x = 927,987.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.