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Finding the Fourth Proportional to 3,276,633.98, 4,914,946.73 and 880,478.64

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Solution

The fourth proportional to 3,276,633.98, 4,914,946.73 and 880,478.64 is: 1,320,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276,633.98 : 4,914,946.73 = 880,478.64 : x
  2. Step 2: Convert to fraction form
    3,276,633.98/4,914,946.73 = 880,478.64/x
  3. Step 3: Cross multiply
    3,276,633.98x = 4,914,946.73 × 880,478.64
  4. Step 4: Simplify right side
    3,276,633.98x = 4,327,505,612,502.85
  5. Step 5: Solve for x
    x = 4,327,505,612,502.85/3,276,633.98
  6. Step 6: Final answer
    x = 1,320,716.82

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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.