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Finding the Fourth Proportional to 777,121, 1,165,628.00 and 477,647.80

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Solution

The fourth proportional to 777,121, 1,165,628.00 and 477,647.80 is: 716,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,121 : 1,165,628.00 = 477,647.80 : x
  2. Step 2: Convert to fraction form
    777,121/1,165,628.00 = 477,647.80/x
  3. Step 3: Cross multiply
    777,121x = 1,165,628.00 × 477,647.80
  4. Step 4: Simplify right side
    777,121x = 556,759,647,430.16
  5. Step 5: Solve for x
    x = 556,759,647,430.16/777,121
  6. Step 6: Final answer
    x = 716,438.81

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