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Finding the Third Proportional to 298,411,844 and 642,173,333

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Solution

The third proportional to 298,411,844 and 642,173,333 is: 1,381,937,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,411,844 : 642,173,333 = 642,173,333 : x
  2. Step 2: Convert to fraction form
    298,411,844/642,173,333 = 642,173,333/x
  3. Step 3: Cross multiply
    298,411,844x = 642,173,333 × 642,173,333
  4. Step 4: Simplify right side
    298,411,844x = 412,386,589,616,328,896
  5. Step 5: Solve for x
    x = 412,386,589,616,328,896/298,411,844
  6. Step 6: Final answer
    x = 1,381,937,741.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.