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Finding the Third Proportional to 254,700 and 553,629

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Solution

The third proportional to 254,700 and 553,629 is: 1,203,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,700 : 553,629 = 553,629 : x
  2. Step 2: Convert to fraction form
    254,700/553,629 = 553,629/x
  3. Step 3: Cross multiply
    254,700x = 553,629 × 553,629
  4. Step 4: Simplify right side
    254,700x = 306,505,069,641
  5. Step 5: Solve for x
    x = 306,505,069,641/254,700
  6. Step 6: Final answer
    x = 1,203,396.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.