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Finding the Fourth Proportional to 370,796.92, 556,194.70 and 320,728.12

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Solution

The fourth proportional to 370,796.92, 556,194.70 and 320,728.12 is: 481,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,796.92 : 556,194.70 = 320,728.12 : x
  2. Step 2: Convert to fraction form
    370,796.92/556,194.70 = 320,728.12/x
  3. Step 3: Cross multiply
    370,796.92x = 556,194.70 × 320,728.12
  4. Step 4: Simplify right side
    370,796.92x = 178,387,280,484.96
  5. Step 5: Solve for x
    x = 178,387,280,484.96/370,796.92
  6. Step 6: Final answer
    x = 481,091.59

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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.