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Finding the Fourth Proportional to 483,933.40, 725,900.10 and 421,725.40

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Solution

The fourth proportional to 483,933.40, 725,900.10 and 421,725.40 is: 632,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,933.40 : 725,900.10 = 421,725.40 : x
  2. Step 2: Convert to fraction form
    483,933.40/725,900.10 = 421,725.40/x
  3. Step 3: Cross multiply
    483,933.40x = 725,900.10 × 421,725.40
  4. Step 4: Simplify right side
    483,933.40x = 306,130,510,032.54
  5. Step 5: Solve for x
    x = 306,130,510,032.54/483,933.40
  6. Step 6: Final answer
    x = 632,588.10

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