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Finding the Fourth Proportional to 386,035.44, 579,071.61 and 186,523.63

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Solution

The fourth proportional to 386,035.44, 579,071.61 and 186,523.63 is: 279,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,035.44 : 579,071.61 = 186,523.63 : x
  2. Step 2: Convert to fraction form
    386,035.44/579,071.61 = 186,523.63/x
  3. Step 3: Cross multiply
    386,035.44x = 579,071.61 × 186,523.63
  4. Step 4: Simplify right side
    386,035.44x = 108,010,538,727.14
  5. Step 5: Solve for x
    x = 108,010,538,727.14/386,035.44
  6. Step 6: Final answer
    x = 279,794.36

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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.