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Finding the Third Proportional to 432,615 and 931,790

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Solution

The third proportional to 432,615 and 931,790 is: 2,006,940.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,615 : 931,790 = 931,790 : x
  2. Step 2: Convert to fraction form
    432,615/931,790 = 931,790/x
  3. Step 3: Cross multiply
    432,615x = 931,790 × 931,790
  4. Step 4: Simplify right side
    432,615x = 868,232,604,100
  5. Step 5: Solve for x
    x = 868,232,604,100/432,615
  6. Step 6: Final answer
    x = 2,006,940.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.