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Finding the Third Proportional to 722,718 and 1,556,433

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Solution

The third proportional to 722,718 and 1,556,433 is: 3,351,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,718 : 1,556,433 = 1,556,433 : x
  2. Step 2: Convert to fraction form
    722,718/1,556,433 = 1,556,433/x
  3. Step 3: Cross multiply
    722,718x = 1,556,433 × 1,556,433
  4. Step 4: Simplify right side
    722,718x = 2,422,483,683,489
  5. Step 5: Solve for x
    x = 2,422,483,683,489/722,718
  6. Step 6: Final answer
    x = 3,351,907.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.