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Finding the Third Proportional to 633,890 and 1,392,196

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Solution

The third proportional to 633,890 and 1,392,196 is: 3,057,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,890 : 1,392,196 = 1,392,196 : x
  2. Step 2: Convert to fraction form
    633,890/1,392,196 = 1,392,196/x
  3. Step 3: Cross multiply
    633,890x = 1,392,196 × 1,392,196
  4. Step 4: Simplify right side
    633,890x = 1,938,209,702,416
  5. Step 5: Solve for x
    x = 1,938,209,702,416/633,890
  6. Step 6: Final answer
    x = 3,057,643.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.