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Finding the Third Proportional to 1,490,609.25 and 3,217,414.50

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Solution

The third proportional to 1,490,609.25 and 3,217,414.50 is: 6,944,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,609.25 : 3,217,414.50 = 3,217,414.50 : x
  2. Step 2: Convert to fraction form
    1,490,609.25/3,217,414.50 = 3,217,414.50/x
  3. Step 3: Cross multiply
    1,490,609.25x = 3,217,414.50 × 3,217,414.50
  4. Step 4: Simplify right side
    1,490,609.25x = 10,351,756,064,810.25
  5. Step 5: Solve for x
    x = 10,351,756,064,810.25/1,490,609.25
  6. Step 6: Final answer
    x = 6,944,647.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.