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Finding the Third Proportional to 621,808 and 1,645,692

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Solution

The third proportional to 621,808 and 1,645,692 is: 4,355,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,808 : 1,645,692 = 1,645,692 : x
  2. Step 2: Convert to fraction form
    621,808/1,645,692 = 1,645,692/x
  3. Step 3: Cross multiply
    621,808x = 1,645,692 × 1,645,692
  4. Step 4: Simplify right side
    621,808x = 2,708,302,158,864
  5. Step 5: Solve for x
    x = 2,708,302,158,864/621,808
  6. Step 6: Final answer
    x = 4,355,528.01

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Why These Related Problems?

These problems maintain the same ratio (2.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.