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Finding the Third Proportional to 644,004 and 1,386,612

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Solution

The third proportional to 644,004 and 1,386,612 is: 2,985,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,004 : 1,386,612 = 1,386,612 : x
  2. Step 2: Convert to fraction form
    644,004/1,386,612 = 1,386,612/x
  3. Step 3: Cross multiply
    644,004x = 1,386,612 × 1,386,612
  4. Step 4: Simplify right side
    644,004x = 1,922,692,838,544
  5. Step 5: Solve for x
    x = 1,922,692,838,544/644,004
  6. Step 6: Final answer
    x = 2,985,529.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.