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Finding the Third Proportional to 384,658.50 and 890,416.50

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Solution

The third proportional to 384,658.50 and 890,416.50 is: 2,061,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,658.50 : 890,416.50 = 890,416.50 : x
  2. Step 2: Convert to fraction form
    384,658.50/890,416.50 = 890,416.50/x
  3. Step 3: Cross multiply
    384,658.50x = 890,416.50 × 890,416.50
  4. Step 4: Simplify right side
    384,658.50x = 792,841,543,472.25
  5. Step 5: Solve for x
    x = 792,841,543,472.25/384,658.50
  6. Step 6: Final answer
    x = 2,061,156.96

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.