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Finding the Third Proportional to 188,791,444 and 415,047,982

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Solution

The third proportional to 188,791,444 and 415,047,982 is: 912,460,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,791,444 : 415,047,982 = 415,047,982 : x
  2. Step 2: Convert to fraction form
    188,791,444/415,047,982 = 415,047,982/x
  3. Step 3: Cross multiply
    188,791,444x = 415,047,982 × 415,047,982
  4. Step 4: Simplify right side
    188,791,444x = 172,264,827,362,272,320
  5. Step 5: Solve for x
    x = 172,264,827,362,272,320/188,791,444
  6. Step 6: Final answer
    x = 912,460,987.17

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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.