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Finding the Third Proportional to 215,156,776 and 322,955,488

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Solution

The third proportional to 215,156,776 and 322,955,488 is: 484,763,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,156,776 : 322,955,488 = 322,955,488 : x
  2. Step 2: Convert to fraction form
    215,156,776/322,955,488 = 322,955,488/x
  3. Step 3: Cross multiply
    215,156,776x = 322,955,488 × 322,955,488
  4. Step 4: Simplify right side
    215,156,776x = 104,300,247,229,318,144
  5. Step 5: Solve for x
    x = 104,300,247,229,318,144/215,156,776
  6. Step 6: Final answer
    x = 484,763,943.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.