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Finding the Third Proportional to 556,138.50 and 1,214,214

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Solution

The third proportional to 556,138.50 and 1,214,214 is: 2,650,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,138.50 : 1,214,214 = 1,214,214 : x
  2. Step 2: Convert to fraction form
    556,138.50/1,214,214 = 1,214,214/x
  3. Step 3: Cross multiply
    556,138.50x = 1,214,214 × 1,214,214
  4. Step 4: Simplify right side
    556,138.50x = 1,474,315,637,796
  5. Step 5: Solve for x
    x = 1,474,315,637,796/556,138.50
  6. Step 6: Final answer
    x = 2,650,986.47

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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.