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Finding the Fourth Proportional to 485,135.60, 727,703.40 and 482,025.20

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Solution

The fourth proportional to 485,135.60, 727,703.40 and 482,025.20 is: 723,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,135.60 : 727,703.40 = 482,025.20 : x
  2. Step 2: Convert to fraction form
    485,135.60/727,703.40 = 482,025.20/x
  3. Step 3: Cross multiply
    485,135.60x = 727,703.40 × 482,025.20
  4. Step 4: Simplify right side
    485,135.60x = 350,771,376,925.68
  5. Step 5: Solve for x
    x = 350,771,376,925.68/485,135.60
  6. Step 6: Final answer
    x = 723,037.80

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