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Finding the Fourth Proportional to 996,026, 1,494,052 and 331,178

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Solution

The fourth proportional to 996,026, 1,494,052 and 331,178 is: 496,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,026 : 1,494,052 = 331,178 : x
  2. Step 2: Convert to fraction form
    996,026/1,494,052 = 331,178/x
  3. Step 3: Cross multiply
    996,026x = 1,494,052 × 331,178
  4. Step 4: Simplify right side
    996,026x = 494,797,153,256
  5. Step 5: Solve for x
    x = 494,797,153,256/996,026
  6. Step 6: Final answer
    x = 496,771.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.