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Finding the Fourth Proportional to 366,920.30, 550,380.45 and 242,261.30

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Solution

The fourth proportional to 366,920.30, 550,380.45 and 242,261.30 is: 363,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.30 : 550,380.45 = 242,261.30 : x
  2. Step 2: Convert to fraction form
    366,920.30/550,380.45 = 242,261.30/x
  3. Step 3: Cross multiply
    366,920.30x = 550,380.45 × 242,261.30
  4. Step 4: Simplify right side
    366,920.30x = 133,335,883,311.59
  5. Step 5: Solve for x
    x = 133,335,883,311.59/366,920.30
  6. Step 6: Final answer
    x = 363,391.95

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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.