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Finding the Fourth Proportional to 671,634.11, 1,007,584.11 and 191,866.05

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Solution

The fourth proportional to 671,634.11, 1,007,584.11 and 191,866.05 is: 287,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,634.11 : 1,007,584.11 = 191,866.05 : x
  2. Step 2: Convert to fraction form
    671,634.11/1,007,584.11 = 191,866.05/x
  3. Step 3: Cross multiply
    671,634.11x = 1,007,584.11 × 191,866.05
  4. Step 4: Simplify right side
    671,634.11x = 193,321,183,228.47
  5. Step 5: Solve for x
    x = 193,321,183,228.47/671,634.11
  6. Step 6: Final answer
    x = 287,837.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.