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Finding the Third Proportional to 208,200 and 447,972

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Solution

The third proportional to 208,200 and 447,972 is: 963,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,200 : 447,972 = 447,972 : x
  2. Step 2: Convert to fraction form
    208,200/447,972 = 447,972/x
  3. Step 3: Cross multiply
    208,200x = 447,972 × 447,972
  4. Step 4: Simplify right side
    208,200x = 200,678,912,784
  5. Step 5: Solve for x
    x = 200,678,912,784/208,200
  6. Step 6: Final answer
    x = 963,875.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.