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Finding the Third Proportional to 1,015,788.94 and 2,115,650.81

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Solution

The third proportional to 1,015,788.94 and 2,115,650.81 is: 4,406,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,788.94 : 2,115,650.81 = 2,115,650.81 : x
  2. Step 2: Convert to fraction form
    1,015,788.94/2,115,650.81 = 2,115,650.81/x
  3. Step 3: Cross multiply
    1,015,788.94x = 2,115,650.81 × 2,115,650.81
  4. Step 4: Simplify right side
    1,015,788.94x = 4,475,978,360,431.91
  5. Step 5: Solve for x
    x = 4,475,978,360,431.91/1,015,788.94
  6. Step 6: Final answer
    x = 4,406,405.89

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.