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Finding the Fourth Proportional to 478,826.20, 718,239.30 and 471,827.80

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Solution

The fourth proportional to 478,826.20, 718,239.30 and 471,827.80 is: 707,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,826.20 : 718,239.30 = 471,827.80 : x
  2. Step 2: Convert to fraction form
    478,826.20/718,239.30 = 471,827.80/x
  3. Step 3: Cross multiply
    478,826.20x = 718,239.30 × 471,827.80
  4. Step 4: Simplify right side
    478,826.20x = 338,885,268,792.54
  5. Step 5: Solve for x
    x = 338,885,268,792.54/478,826.20
  6. Step 6: Final answer
    x = 707,741.70

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