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Finding the Third Proportional to 990,312 and 1,481,766

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Solution

The third proportional to 990,312 and 1,481,766 is: 2,217,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,312 : 1,481,766 = 1,481,766 : x
  2. Step 2: Convert to fraction form
    990,312/1,481,766 = 1,481,766/x
  3. Step 3: Cross multiply
    990,312x = 1,481,766 × 1,481,766
  4. Step 4: Simplify right side
    990,312x = 2,195,630,478,756
  5. Step 5: Solve for x
    x = 2,195,630,478,756/990,312
  6. Step 6: Final answer
    x = 2,217,109.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.