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Finding the Third Proportional to 509,788,092.75 and 787,201,961.50

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Solution

The third proportional to 509,788,092.75 and 787,201,961.50 is: 1,215,577,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,788,092.75 : 787,201,961.50 = 787,201,961.50 : x
  2. Step 2: Convert to fraction form
    509,788,092.75/787,201,961.50 = 787,201,961.50/x
  3. Step 3: Cross multiply
    509,788,092.75x = 787,201,961.50 × 787,201,961.50
  4. Step 4: Simplify right side
    509,788,092.75x = 619,686,928,189,447,424
  5. Step 5: Solve for x
    x = 619,686,928,189,447,424/509,788,092.75
  6. Step 6: Final answer
    x = 1,215,577,486.02

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.