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Finding the Third Proportional to 455,823 and 999,119

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Solution

The third proportional to 455,823 and 999,119 is: 2,189,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,823 : 999,119 = 999,119 : x
  2. Step 2: Convert to fraction form
    455,823/999,119 = 999,119/x
  3. Step 3: Cross multiply
    455,823x = 999,119 × 999,119
  4. Step 4: Simplify right side
    455,823x = 998,238,776,161
  5. Step 5: Solve for x
    x = 998,238,776,161/455,823
  6. Step 6: Final answer
    x = 2,189,970.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.