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Finding the Third Proportional to 472,700 and 709,401

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Solution

The third proportional to 472,700 and 709,401 is: 1,064,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,700 : 709,401 = 709,401 : x
  2. Step 2: Convert to fraction form
    472,700/709,401 = 709,401/x
  3. Step 3: Cross multiply
    472,700x = 709,401 × 709,401
  4. Step 4: Simplify right side
    472,700x = 503,249,778,801
  5. Step 5: Solve for x
    x = 503,249,778,801/472,700
  6. Step 6: Final answer
    x = 1,064,628.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.