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Finding the Fourth Proportional to 383,887.98, 529,659.06 and 247,927.68

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Solution

The fourth proportional to 383,887.98, 529,659.06 and 247,927.68 is: 342,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,887.98 : 529,659.06 = 247,927.68 : x
  2. Step 2: Convert to fraction form
    383,887.98/529,659.06 = 247,927.68/x
  3. Step 3: Cross multiply
    383,887.98x = 529,659.06 × 247,927.68
  4. Step 4: Simplify right side
    383,887.98x = 131,317,141,936.78
  5. Step 5: Solve for x
    x = 131,317,141,936.78/383,887.98
  6. Step 6: Final answer
    x = 342,071.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.