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Finding the Third Proportional to 692,669 and 1,515,803

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Solution

The third proportional to 692,669 and 1,515,803 is: 3,317,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,669 : 1,515,803 = 1,515,803 : x
  2. Step 2: Convert to fraction form
    692,669/1,515,803 = 1,515,803/x
  3. Step 3: Cross multiply
    692,669x = 1,515,803 × 1,515,803
  4. Step 4: Simplify right side
    692,669x = 2,297,658,734,809
  5. Step 5: Solve for x
    x = 2,297,658,734,809/692,669
  6. Step 6: Final answer
    x = 3,317,109.23

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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.