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Finding the Third Proportional to 197,318 and 427,900

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Solution

The third proportional to 197,318 and 427,900 is: 927,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,318 : 427,900 = 427,900 : x
  2. Step 2: Convert to fraction form
    197,318/427,900 = 427,900/x
  3. Step 3: Cross multiply
    197,318x = 427,900 × 427,900
  4. Step 4: Simplify right side
    197,318x = 183,098,410,000
  5. Step 5: Solve for x
    x = 183,098,410,000/197,318
  6. Step 6: Final answer
    x = 927,935.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.