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Finding the Third Proportional to 457,912 and 700,464

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Solution

The third proportional to 457,912 and 700,464 is: 1,071,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,912 : 700,464 = 700,464 : x
  2. Step 2: Convert to fraction form
    457,912/700,464 = 700,464/x
  3. Step 3: Cross multiply
    457,912x = 700,464 × 700,464
  4. Step 4: Simplify right side
    457,912x = 490,649,815,296
  5. Step 5: Solve for x
    x = 490,649,815,296/457,912
  6. Step 6: Final answer
    x = 1,071,493.68

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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.