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Finding the Fourth Proportional to 483,215.40, 724,823.10 and 478,549.80

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Solution

The fourth proportional to 483,215.40, 724,823.10 and 478,549.80 is: 717,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,215.40 : 724,823.10 = 478,549.80 : x
  2. Step 2: Convert to fraction form
    483,215.40/724,823.10 = 478,549.80/x
  3. Step 3: Cross multiply
    483,215.40x = 724,823.10 × 478,549.80
  4. Step 4: Simplify right side
    483,215.40x = 346,863,949,540.38
  5. Step 5: Solve for x
    x = 346,863,949,540.38/483,215.40
  6. Step 6: Final answer
    x = 717,824.70

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