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Finding the Third Proportional to 620,634 and 948,987

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Solution

The third proportional to 620,634 and 948,987 is: 1,451,058.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,634 : 948,987 = 948,987 : x
  2. Step 2: Convert to fraction form
    620,634/948,987 = 948,987/x
  3. Step 3: Cross multiply
    620,634x = 948,987 × 948,987
  4. Step 4: Simplify right side
    620,634x = 900,576,326,169
  5. Step 5: Solve for x
    x = 900,576,326,169/620,634
  6. Step 6: Final answer
    x = 1,451,058.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.