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Finding the Fourth Proportional to 558,322.85, 770,447.62 and 303,668.57

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Solution

The fourth proportional to 558,322.85, 770,447.62 and 303,668.57 is: 419,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,322.85 : 770,447.62 = 303,668.57 : x
  2. Step 2: Convert to fraction form
    558,322.85/770,447.62 = 303,668.57/x
  3. Step 3: Cross multiply
    558,322.85x = 770,447.62 × 303,668.57
  4. Step 4: Simplify right side
    558,322.85x = 233,960,727,025.30
  5. Step 5: Solve for x
    x = 233,960,727,025.30/558,322.85
  6. Step 6: Final answer
    x = 419,042.01

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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.