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Finding the Fourth Proportional to 486,510.84, 671,356.17 and 271,664.37

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Solution

The fourth proportional to 486,510.84, 671,356.17 and 271,664.37 is: 374,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,510.84 : 671,356.17 = 271,664.37 : x
  2. Step 2: Convert to fraction form
    486,510.84/671,356.17 = 271,664.37/x
  3. Step 3: Cross multiply
    486,510.84x = 671,356.17 × 271,664.37
  4. Step 4: Simplify right side
    486,510.84x = 182,383,550,968.66
  5. Step 5: Solve for x
    x = 182,383,550,968.66/486,510.84
  6. Step 6: Final answer
    x = 374,880.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.