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Finding the Fourth Proportional to 618,048.15, 927,216.87 and 191,561.68

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Solution

The fourth proportional to 618,048.15, 927,216.87 and 191,561.68 is: 287,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,048.15 : 927,216.87 = 191,561.68 : x
  2. Step 2: Convert to fraction form
    618,048.15/927,216.87 = 191,561.68/x
  3. Step 3: Cross multiply
    618,048.15x = 927,216.87 × 191,561.68
  4. Step 4: Simplify right side
    618,048.15x = 177,619,221,341.54
  5. Step 5: Solve for x
    x = 177,619,221,341.54/618,048.15
  6. Step 6: Final answer
    x = 287,387.35

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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.