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Finding the Fourth Proportional to 618,594.89, 927,664.74 and 213,684.05

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Solution

The fourth proportional to 618,594.89, 927,664.74 and 213,684.05 is: 320,447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,594.89 : 927,664.74 = 213,684.05 : x
  2. Step 2: Convert to fraction form
    618,594.89/927,664.74 = 213,684.05/x
  3. Step 3: Cross multiply
    618,594.89x = 927,664.74 × 213,684.05
  4. Step 4: Simplify right side
    618,594.89x = 198,227,161,004.56
  5. Step 5: Solve for x
    x = 198,227,161,004.56/618,594.89
  6. Step 6: Final answer
    x = 320,447.46

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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.