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Finding the Fourth Proportional to 366,840.70, 550,261.05 and 331,411.30

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Solution

The fourth proportional to 366,840.70, 550,261.05 and 331,411.30 is: 497,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,840.70 : 550,261.05 = 331,411.30 : x
  2. Step 2: Convert to fraction form
    366,840.70/550,261.05 = 331,411.30/x
  3. Step 3: Cross multiply
    366,840.70x = 550,261.05 × 331,411.30
  4. Step 4: Simplify right side
    366,840.70x = 182,362,729,919.87
  5. Step 5: Solve for x
    x = 182,362,729,919.87/366,840.70
  6. Step 6: Final answer
    x = 497,116.95

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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.