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Finding the Third Proportional to 396,622.13 and 604,225.69

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Solution

The third proportional to 396,622.13 and 604,225.69 is: 920,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,622.13 : 604,225.69 = 604,225.69 : x
  2. Step 2: Convert to fraction form
    396,622.13/604,225.69 = 604,225.69/x
  3. Step 3: Cross multiply
    396,622.13x = 604,225.69 × 604,225.69
  4. Step 4: Simplify right side
    396,622.13x = 365,088,681,434.85
  5. Step 5: Solve for x
    x = 365,088,681,434.85/396,622.13
  6. Step 6: Final answer
    x = 920,495.00

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.