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Finding the Third Proportional to 490,686 and 1,058,709

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Solution

The third proportional to 490,686 and 1,058,709 is: 2,284,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,686 : 1,058,709 = 1,058,709 : x
  2. Step 2: Convert to fraction form
    490,686/1,058,709 = 1,058,709/x
  3. Step 3: Cross multiply
    490,686x = 1,058,709 × 1,058,709
  4. Step 4: Simplify right side
    490,686x = 1,120,864,746,681
  5. Step 5: Solve for x
    x = 1,120,864,746,681/490,686
  6. Step 6: Final answer
    x = 2,284,281.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.