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Finding the Third Proportional to 266,991 and 583,216.50

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Solution

The third proportional to 266,991 and 583,216.50 is: 1,273,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,991 : 583,216.50 = 583,216.50 : x
  2. Step 2: Convert to fraction form
    266,991/583,216.50 = 583,216.50/x
  3. Step 3: Cross multiply
    266,991x = 583,216.50 × 583,216.50
  4. Step 4: Simplify right side
    266,991x = 340,141,485,872.25
  5. Step 5: Solve for x
    x = 340,141,485,872.25/266,991
  6. Step 6: Final answer
    x = 1,273,981.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.