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Finding the Fourth Proportional to 303,345.75, 418,616.73 and 167,379.65

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Solution

The fourth proportional to 303,345.75, 418,616.73 and 167,379.65 is: 230,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,345.75 : 418,616.73 = 167,379.65 : x
  2. Step 2: Convert to fraction form
    303,345.75/418,616.73 = 167,379.65/x
  3. Step 3: Cross multiply
    303,345.75x = 418,616.73 × 167,379.65
  4. Step 4: Simplify right side
    303,345.75x = 70,067,921,751.54
  5. Step 5: Solve for x
    x = 70,067,921,751.54/303,345.75
  6. Step 6: Final answer
    x = 230,983.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.