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Finding the Fourth Proportional to 669,085.36, 922,917.84 and 396,960.64

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Solution

The fourth proportional to 669,085.36, 922,917.84 and 396,960.64 is: 547,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,085.36 : 922,917.84 = 396,960.64 : x
  2. Step 2: Convert to fraction form
    669,085.36/922,917.84 = 396,960.64/x
  3. Step 3: Cross multiply
    669,085.36x = 922,917.84 × 396,960.64
  4. Step 4: Simplify right side
    669,085.36x = 366,362,056,433.82
  5. Step 5: Solve for x
    x = 366,362,056,433.82/669,085.36
  6. Step 6: Final answer
    x = 547,556.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.