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Finding the Fourth Proportional to 404,768.81, 558,630.20 and 235,002.94

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Solution

The fourth proportional to 404,768.81, 558,630.20 and 235,002.94 is: 324,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,768.81 : 558,630.20 = 235,002.94 : x
  2. Step 2: Convert to fraction form
    404,768.81/558,630.20 = 235,002.94/x
  3. Step 3: Cross multiply
    404,768.81x = 558,630.20 × 235,002.94
  4. Step 4: Simplify right side
    404,768.81x = 131,279,738,563.72
  5. Step 5: Solve for x
    x = 131,279,738,563.72/404,768.81
  6. Step 6: Final answer
    x = 324,332.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.