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Finding the Fourth Proportional to 351,634.84, 485,256.31 and 190,490.53

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Solution

The fourth proportional to 351,634.84, 485,256.31 and 190,490.53 is: 262,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,634.84 : 485,256.31 = 190,490.53 : x
  2. Step 2: Convert to fraction form
    351,634.84/485,256.31 = 190,490.53/x
  3. Step 3: Cross multiply
    351,634.84x = 485,256.31 × 190,490.53
  4. Step 4: Simplify right side
    351,634.84x = 92,436,731,677.74
  5. Step 5: Solve for x
    x = 92,436,731,677.74/351,634.84
  6. Step 6: Final answer
    x = 262,877.06

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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.