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Finding the Fourth Proportional to 665,842.94, 998,863.86 and 245,086.82

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Solution

The fourth proportional to 665,842.94, 998,863.86 and 245,086.82 is: 367,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,842.94 : 998,863.86 = 245,086.82 : x
  2. Step 2: Convert to fraction form
    665,842.94/998,863.86 = 245,086.82/x
  3. Step 3: Cross multiply
    665,842.94x = 998,863.86 × 245,086.82
  4. Step 4: Simplify right side
    665,842.94x = 244,808,367,060.33
  5. Step 5: Solve for x
    x = 244,808,367,060.33/665,842.94
  6. Step 6: Final answer
    x = 367,666.84

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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.