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Finding the Fourth Proportional to 319,352.25, 479,105.34 and 119,674.38

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Solution

The fourth proportional to 319,352.25, 479,105.34 and 119,674.38 is: 179,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,352.25 : 479,105.34 = 119,674.38 : x
  2. Step 2: Convert to fraction form
    319,352.25/479,105.34 = 119,674.38/x
  3. Step 3: Cross multiply
    319,352.25x = 479,105.34 × 119,674.38
  4. Step 4: Simplify right side
    319,352.25x = 57,336,634,519.19
  5. Step 5: Solve for x
    x = 57,336,634,519.19/319,352.25
  6. Step 6: Final answer
    x = 179,540.41

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1.5x scale

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.