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Finding the Fourth Proportional to 522,459,864.32, 783,691,408.08 and 128,986,736

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Solution

The fourth proportional to 522,459,864.32, 783,691,408.08 and 128,986,736 is: 193,480,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,459,864.32 : 783,691,408.08 = 128,986,736 : x
  2. Step 2: Convert to fraction form
    522,459,864.32/783,691,408.08 = 128,986,736/x
  3. Step 3: Cross multiply
    522,459,864.32x = 783,691,408.08 × 128,986,736
  4. Step 4: Simplify right side
    522,459,864.32x = 101,085,796,759,483,232
  5. Step 5: Solve for x
    x = 101,085,796,759,483,232/522,459,864.32
  6. Step 6: Final answer
    x = 193,480,501.88

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