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Finding the Fourth Proportional to 848,559.63, 1,271,998.66 and 398,474.80

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Solution

The fourth proportional to 848,559.63, 1,271,998.66 and 398,474.80 is: 597,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,559.63 : 1,271,998.66 = 398,474.80 : x
  2. Step 2: Convert to fraction form
    848,559.63/1,271,998.66 = 398,474.80/x
  3. Step 3: Cross multiply
    848,559.63x = 1,271,998.66 × 398,474.80
  4. Step 4: Simplify right side
    848,559.63x = 506,859,411,643.77
  5. Step 5: Solve for x
    x = 506,859,411,643.77/848,559.63
  6. Step 6: Final answer
    x = 597,317.38

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