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Finding the Fourth Proportional to 492,783.66, 739,255.46 and 193,101.78

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Solution

The fourth proportional to 492,783.66, 739,255.46 and 193,101.78 is: 289,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,783.66 : 739,255.46 = 193,101.78 : x
  2. Step 2: Convert to fraction form
    492,783.66/739,255.46 = 193,101.78/x
  3. Step 3: Cross multiply
    492,783.66x = 739,255.46 × 193,101.78
  4. Step 4: Simplify right side
    492,783.66x = 142,751,544,235.21
  5. Step 5: Solve for x
    x = 142,751,544,235.21/492,783.66
  6. Step 6: Final answer
    x = 289,684.01

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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.