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Finding the Fourth Proportional to 404,583.85, 558,322.97 and 223,295.78

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Solution

The fourth proportional to 404,583.85, 558,322.97 and 223,295.78 is: 308,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,583.85 : 558,322.97 = 223,295.78 : x
  2. Step 2: Convert to fraction form
    404,583.85/558,322.97 = 223,295.78/x
  3. Step 3: Cross multiply
    404,583.85x = 558,322.97 × 223,295.78
  4. Step 4: Simplify right side
    404,583.85x = 124,671,162,415.13
  5. Step 5: Solve for x
    x = 124,671,162,415.13/404,583.85
  6. Step 6: Final answer
    x = 308,146.66

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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.