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Finding the Third Proportional to 334,378 and 518,334

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Solution

The third proportional to 334,378 and 518,334 is: 803,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,378 : 518,334 = 518,334 : x
  2. Step 2: Convert to fraction form
    334,378/518,334 = 518,334/x
  3. Step 3: Cross multiply
    334,378x = 518,334 × 518,334
  4. Step 4: Simplify right side
    334,378x = 268,670,135,556
  5. Step 5: Solve for x
    x = 268,670,135,556/334,378
  6. Step 6: Final answer
    x = 803,492.26

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.