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Finding the Fourth Proportional to 338,979, 467,789.76 and 186,019.77

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Solution

The fourth proportional to 338,979, 467,789.76 and 186,019.77 is: 256,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,979 : 467,789.76 = 186,019.77 : x
  2. Step 2: Convert to fraction form
    338,979/467,789.76 = 186,019.77/x
  3. Step 3: Cross multiply
    338,979x = 467,789.76 × 186,019.77
  4. Step 4: Simplify right side
    338,979x = 87,018,143,563.56
  5. Step 5: Solve for x
    x = 87,018,143,563.56/338,979
  6. Step 6: Final answer
    x = 256,706.59

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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.