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Finding the Third Proportional to 1,155,388.43 and 2,493,459.70

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Solution

The third proportional to 1,155,388.43 and 2,493,459.70 is: 5,381,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,388.43 : 2,493,459.70 = 2,493,459.70 : x
  2. Step 2: Convert to fraction form
    1,155,388.43/2,493,459.70 = 2,493,459.70/x
  3. Step 3: Cross multiply
    1,155,388.43x = 2,493,459.70 × 2,493,459.70
  4. Step 4: Simplify right side
    1,155,388.43x = 6,217,341,291,108.21
  5. Step 5: Solve for x
    x = 6,217,341,291,108.21/1,155,388.43
  6. Step 6: Final answer
    x = 5,381,169.77

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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.