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Finding the Fourth Proportional to 586,046.40, 879,069.60 and 389,054.40

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Solution

The fourth proportional to 586,046.40, 879,069.60 and 389,054.40 is: 583,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,046.40 : 879,069.60 = 389,054.40 : x
  2. Step 2: Convert to fraction form
    586,046.40/879,069.60 = 389,054.40/x
  3. Step 3: Cross multiply
    586,046.40x = 879,069.60 × 389,054.40
  4. Step 4: Simplify right side
    586,046.40x = 342,005,895,786.24
  5. Step 5: Solve for x
    x = 342,005,895,786.24/586,046.40
  6. Step 6: Final answer
    x = 583,581.60

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