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Finding the Fourth Proportional to 456,284.40, 684,361.80 and 156,778.80

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Solution

The fourth proportional to 456,284.40, 684,361.80 and 156,778.80 is: 235,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,284.40 : 684,361.80 = 156,778.80 : x
  2. Step 2: Convert to fraction form
    456,284.40/684,361.80 = 156,778.80/x
  3. Step 3: Cross multiply
    456,284.40x = 684,361.80 × 156,778.80
  4. Step 4: Simplify right side
    456,284.40x = 107,293,421,769.84
  5. Step 5: Solve for x
    x = 107,293,421,769.84/456,284.40
  6. Step 6: Final answer
    x = 235,145.93

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