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Finding the Third Proportional to 288,622,487 and 630,149,566

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Solution

The third proportional to 288,622,487 and 630,149,566 is: 1,375,805,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,622,487 : 630,149,566 = 630,149,566 : x
  2. Step 2: Convert to fraction form
    288,622,487/630,149,566 = 630,149,566/x
  3. Step 3: Cross multiply
    288,622,487x = 630,149,566 × 630,149,566
  4. Step 4: Simplify right side
    288,622,487x = 397,088,475,529,988,352
  5. Step 5: Solve for x
    x = 397,088,475,529,988,352/288,622,487
  6. Step 6: Final answer
    x = 1,375,805,744.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.