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Finding the Third Proportional to 396,004 and 525,106

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Solution

The third proportional to 396,004 and 525,106 is: 696,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,004 : 525,106 = 525,106 : x
  2. Step 2: Convert to fraction form
    396,004/525,106 = 525,106/x
  3. Step 3: Cross multiply
    396,004x = 525,106 × 525,106
  4. Step 4: Simplify right side
    396,004x = 275,736,311,236
  5. Step 5: Solve for x
    x = 275,736,311,236/396,004
  6. Step 6: Final answer
    x = 696,296.78

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.