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Finding the Third Proportional to 1,405,352 and 3,125,128

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Solution

The third proportional to 1,405,352 and 3,125,128 is: 6,949,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,352 : 3,125,128 = 3,125,128 : x
  2. Step 2: Convert to fraction form
    1,405,352/3,125,128 = 3,125,128/x
  3. Step 3: Cross multiply
    1,405,352x = 3,125,128 × 3,125,128
  4. Step 4: Simplify right side
    1,405,352x = 9,766,425,016,384
  5. Step 5: Solve for x
    x = 9,766,425,016,384/1,405,352
  6. Step 6: Final answer
    x = 6,949,451.11

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These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.