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Finding the Fourth Proportional to 404,608.16, 558,319.49 and 223,308.41

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Solution

The fourth proportional to 404,608.16, 558,319.49 and 223,308.41 is: 308,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,608.16 : 558,319.49 = 223,308.41 : x
  2. Step 2: Convert to fraction form
    404,608.16/558,319.49 = 223,308.41/x
  3. Step 3: Cross multiply
    404,608.16x = 558,319.49 × 223,308.41
  4. Step 4: Simplify right side
    404,608.16x = 124,677,433,675.77
  5. Step 5: Solve for x
    x = 124,677,433,675.77/404,608.16
  6. Step 6: Final answer
    x = 308,143.65

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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.