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Finding the Fourth Proportional to 618,064.89, 927,241.11 and 191,578.09

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Solution

The fourth proportional to 618,064.89, 927,241.11 and 191,578.09 is: 287,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,064.89 : 927,241.11 = 191,578.09 : x
  2. Step 2: Convert to fraction form
    618,064.89/927,241.11 = 191,578.09/x
  3. Step 3: Cross multiply
    618,064.89x = 927,241.11 × 191,578.09
  4. Step 4: Simplify right side
    618,064.89x = 177,639,080,823.28
  5. Step 5: Solve for x
    x = 177,639,080,823.28/618,064.89
  6. Step 6: Final answer
    x = 287,411.70

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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.