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Finding the Third Proportional to 456,336 and 709,395

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Solution

The third proportional to 456,336 and 709,395 is: 1,102,786.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,336 : 709,395 = 709,395 : x
  2. Step 2: Convert to fraction form
    456,336/709,395 = 709,395/x
  3. Step 3: Cross multiply
    456,336x = 709,395 × 709,395
  4. Step 4: Simplify right side
    456,336x = 503,241,266,025
  5. Step 5: Solve for x
    x = 503,241,266,025/456,336
  6. Step 6: Final answer
    x = 1,102,786.69

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.