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Finding the Third Proportional to 619,357.50 and 905,140.13

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Solution

The third proportional to 619,357.50 and 905,140.13 is: 1,322,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,357.50 : 905,140.13 = 905,140.13 : x
  2. Step 2: Convert to fraction form
    619,357.50/905,140.13 = 905,140.13/x
  3. Step 3: Cross multiply
    619,357.50x = 905,140.13 × 905,140.13
  4. Step 4: Simplify right side
    619,357.50x = 819,278,645,885.02
  5. Step 5: Solve for x
    x = 819,278,645,885.02/619,357.50
  6. Step 6: Final answer
    x = 1,322,787.96

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.