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Finding the Fourth Proportional to 338,979.52, 467,790.44 and 186,020.28

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Solution

The fourth proportional to 338,979.52, 467,790.44 and 186,020.28 is: 256,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,979.52 : 467,790.44 = 186,020.28 : x
  2. Step 2: Convert to fraction form
    338,979.52/467,790.44 = 186,020.28/x
  3. Step 3: Cross multiply
    338,979.52x = 467,790.44 × 186,020.28
  4. Step 4: Simplify right side
    338,979.52x = 87,018,508,630.12
  5. Step 5: Solve for x
    x = 87,018,508,630.12/338,979.52
  6. Step 6: Final answer
    x = 256,707.27

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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.