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Finding the Third Proportional to 1,231,291,520 and 2,708,838,904

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Solution

The third proportional to 1,231,291,520 and 2,708,838,904 is: 5,959,440,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,291,520 : 2,708,838,904 = 2,708,838,904 : x
  2. Step 2: Convert to fraction form
    1,231,291,520/2,708,838,904 = 2,708,838,904/x
  3. Step 3: Cross multiply
    1,231,291,520x = 2,708,838,904 × 2,708,838,904
  4. Step 4: Simplify right side
    1,231,291,520x = 7,337,808,207,823,921,152
  5. Step 5: Solve for x
    x = 7,337,808,207,823,921,152/1,231,291,520
  6. Step 6: Final answer
    x = 5,959,440,220.80

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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.