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Finding the Third Proportional to 873,220 and 1,929,968

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Solution

The third proportional to 873,220 and 1,929,968 is: 4,265,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,220 : 1,929,968 = 1,929,968 : x
  2. Step 2: Convert to fraction form
    873,220/1,929,968 = 1,929,968/x
  3. Step 3: Cross multiply
    873,220x = 1,929,968 × 1,929,968
  4. Step 4: Simplify right side
    873,220x = 3,724,776,481,024
  5. Step 5: Solve for x
    x = 3,724,776,481,024/873,220
  6. Step 6: Final answer
    x = 4,265,564.78

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.