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Finding the Fourth Proportional to 488,705.40, 733,714.20 and 311,558.40

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Solution

The fourth proportional to 488,705.40, 733,714.20 and 311,558.40 is: 467,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,705.40 : 733,714.20 = 311,558.40 : x
  2. Step 2: Convert to fraction form
    488,705.40/733,714.20 = 311,558.40/x
  3. Step 3: Cross multiply
    488,705.40x = 733,714.20 × 311,558.40
  4. Step 4: Simplify right side
    488,705.40x = 228,594,822,209.28
  5. Step 5: Solve for x
    x = 228,594,822,209.28/488,705.40
  6. Step 6: Final answer
    x = 467,755.88

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