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Finding the Fourth Proportional to 203,628.79, 303,789.65 and 192,606.31

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Solution

The fourth proportional to 203,628.79, 303,789.65 and 192,606.31 is: 287,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,628.79 : 303,789.65 = 192,606.31 : x
  2. Step 2: Convert to fraction form
    203,628.79/303,789.65 = 192,606.31/x
  3. Step 3: Cross multiply
    203,628.79x = 303,789.65 × 192,606.31
  4. Step 4: Simplify right side
    203,628.79x = 58,511,803,502.69
  5. Step 5: Solve for x
    x = 58,511,803,502.69/203,628.79
  6. Step 6: Final answer
    x = 287,345.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.