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Finding the Third Proportional to 356,770.88 and 489,228.75

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Solution

The third proportional to 356,770.88 and 489,228.75 is: 670,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,770.88 : 489,228.75 = 489,228.75 : x
  2. Step 2: Convert to fraction form
    356,770.88/489,228.75 = 489,228.75/x
  3. Step 3: Cross multiply
    356,770.88x = 489,228.75 × 489,228.75
  4. Step 4: Simplify right side
    356,770.88x = 239,344,769,826.56
  5. Step 5: Solve for x
    x = 239,344,769,826.56/356,770.88
  6. Step 6: Final answer
    x = 670,864.09

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.