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Finding the Fourth Proportional to 294,040.80, 440,186.40 and 194,313.60

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Solution

The fourth proportional to 294,040.80, 440,186.40 and 194,313.60 is: 290,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,040.80 : 440,186.40 = 194,313.60 : x
  2. Step 2: Convert to fraction form
    294,040.80/440,186.40 = 194,313.60/x
  3. Step 3: Cross multiply
    294,040.80x = 440,186.40 × 194,313.60
  4. Step 4: Simplify right side
    294,040.80x = 85,534,204,055.04
  5. Step 5: Solve for x
    x = 85,534,204,055.04/294,040.80
  6. Step 6: Final answer
    x = 290,892.30

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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.