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Finding the Third Proportional to 287,105,828 and 629,795,964

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Solution

The third proportional to 287,105,828 and 629,795,964 is: 1,381,521,786.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,105,828 : 629,795,964 = 629,795,964 : x
  2. Step 2: Convert to fraction form
    287,105,828/629,795,964 = 629,795,964/x
  3. Step 3: Cross multiply
    287,105,828x = 629,795,964 × 629,795,964
  4. Step 4: Simplify right side
    287,105,828x = 396,642,956,270,689,280
  5. Step 5: Solve for x
    x = 396,642,956,270,689,280/287,105,828
  6. Step 6: Final answer
    x = 1,381,521,786.00

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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.