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Finding the Fourth Proportional to 851,245.76, 1,276,476.64 and 251,992.64

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Solution

The fourth proportional to 851,245.76, 1,276,476.64 and 251,992.64 is: 377,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,245.76 : 1,276,476.64 = 251,992.64 : x
  2. Step 2: Convert to fraction form
    851,245.76/1,276,476.64 = 251,992.64/x
  3. Step 3: Cross multiply
    851,245.76x = 1,276,476.64 × 251,992.64
  4. Step 4: Simplify right side
    851,245.76x = 321,662,718,411.93
  5. Step 5: Solve for x
    x = 321,662,718,411.93/851,245.76
  6. Step 6: Final answer
    x = 377,872.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.