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Finding the Third Proportional to 262,780 and 576,429

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Solution

The third proportional to 262,780 and 576,429 is: 1,264,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,780 : 576,429 = 576,429 : x
  2. Step 2: Convert to fraction form
    262,780/576,429 = 576,429/x
  3. Step 3: Cross multiply
    262,780x = 576,429 × 576,429
  4. Step 4: Simplify right side
    262,780x = 332,270,392,041
  5. Step 5: Solve for x
    x = 332,270,392,041/262,780
  6. Step 6: Final answer
    x = 1,264,443.23

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.