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Finding the Third Proportional to 229,640 and 335,386

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Solution

The third proportional to 229,640 and 335,386 is: 489,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,640 : 335,386 = 335,386 : x
  2. Step 2: Convert to fraction form
    229,640/335,386 = 335,386/x
  3. Step 3: Cross multiply
    229,640x = 335,386 × 335,386
  4. Step 4: Simplify right side
    229,640x = 112,483,768,996
  5. Step 5: Solve for x
    x = 112,483,768,996/229,640
  6. Step 6: Final answer
    x = 489,826.55

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.