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Finding the Third Proportional to 153,911,619 and 338,605,236

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Solution

The third proportional to 153,911,619 and 338,605,236 is: 744,930,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,911,619 : 338,605,236 = 338,605,236 : x
  2. Step 2: Convert to fraction form
    153,911,619/338,605,236 = 338,605,236/x
  3. Step 3: Cross multiply
    153,911,619x = 338,605,236 × 338,605,236
  4. Step 4: Simplify right side
    153,911,619x = 114,653,505,846,615,696
  5. Step 5: Solve for x
    x = 114,653,505,846,615,696/153,911,619
  6. Step 6: Final answer
    x = 744,930,802.44

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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.