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Finding the Third Proportional to 383,331,139.50 and 625,878,965.50

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Solution

The third proportional to 383,331,139.50 and 625,878,965.50 is: 1,021,895,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,331,139.50 : 625,878,965.50 = 625,878,965.50 : x
  2. Step 2: Convert to fraction form
    383,331,139.50/625,878,965.50 = 625,878,965.50/x
  3. Step 3: Cross multiply
    383,331,139.50x = 625,878,965.50 × 625,878,965.50
  4. Step 4: Simplify right side
    383,331,139.50x = 391,724,479,455,350,208
  5. Step 5: Solve for x
    x = 391,724,479,455,350,208/383,331,139.50
  6. Step 6: Final answer
    x = 1,021,895,794.76

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.