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Finding the Fourth Proportional to 618,108.29, 927,187.11 and 191,688.39

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Solution

The fourth proportional to 618,108.29, 927,187.11 and 191,688.39 is: 287,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,108.29 : 927,187.11 = 191,688.39 : x
  2. Step 2: Convert to fraction form
    618,108.29/927,187.11 = 191,688.39/x
  3. Step 3: Cross multiply
    618,108.29x = 927,187.11 × 191,688.39
  4. Step 4: Simplify right side
    618,108.29x = 177,731,004,344.65
  5. Step 5: Solve for x
    x = 177,731,004,344.65/618,108.29
  6. Step 6: Final answer
    x = 287,540.24

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1.5x scale

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.