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Finding the Fourth Proportional to 978,775,392,014.40, 1,468,163,088,021.60 and 978,775,392,014.40

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Solution

The fourth proportional to 978,775,392,014.40, 1,468,163,088,021.60 and 978,775,392,014.40 is: 1,468,163,088,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,775,392,014.40 : 1,468,163,088,021.60 = 978,775,392,014.40 : x
  2. Step 2: Convert to fraction form
    978,775,392,014.40/1,468,163,088,021.60 = 978,775,392,014.40/x
  3. Step 3: Cross multiply
    978,775,392,014.40x = 1,468,163,088,021.60 × 978,775,392,014.40
  4. Step 4: Simplify right side
    978,775,392,014.40x = 1,437,001,902,019,413,740,093,440
  5. Step 5: Solve for x
    x = 1,437,001,902,019,413,740,093,440/978,775,392,014.40
  6. Step 6: Final answer
    x = 1,468,163,088,021.60

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