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Finding the Third Proportional to 306,288,136 and 672,087,940

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Solution

The third proportional to 306,288,136 and 672,087,940 is: 1,474,762,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,288,136 : 672,087,940 = 672,087,940 : x
  2. Step 2: Convert to fraction form
    306,288,136/672,087,940 = 672,087,940/x
  3. Step 3: Cross multiply
    306,288,136x = 672,087,940 × 672,087,940
  4. Step 4: Simplify right side
    306,288,136x = 451,702,199,093,443,584
  5. Step 5: Solve for x
    x = 451,702,199,093,443,584/306,288,136
  6. Step 6: Final answer
    x = 1,474,762,310.39

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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.