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Finding the Fourth Proportional to 366,927.80, 550,391.70 and 310,940.60

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Solution

The fourth proportional to 366,927.80, 550,391.70 and 310,940.60 is: 466,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,927.80 : 550,391.70 = 310,940.60 : x
  2. Step 2: Convert to fraction form
    366,927.80/550,391.70 = 310,940.60/x
  3. Step 3: Cross multiply
    366,927.80x = 550,391.70 × 310,940.60
  4. Step 4: Simplify right side
    366,927.80x = 171,139,125,433.02
  5. Step 5: Solve for x
    x = 171,139,125,433.02/366,927.80
  6. Step 6: Final answer
    x = 466,410.90

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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.