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Finding the Fourth Proportional to 404,658.35, 558,428.63 and 223,370.39

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Solution

The fourth proportional to 404,658.35, 558,428.63 and 223,370.39 is: 308,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,658.35 : 558,428.63 = 223,370.39 : x
  2. Step 2: Convert to fraction form
    404,658.35/558,428.63 = 223,370.39/x
  3. Step 3: Cross multiply
    404,658.35x = 558,428.63 × 223,370.39
  4. Step 4: Simplify right side
    404,658.35x = 124,736,416,961.27
  5. Step 5: Solve for x
    x = 124,736,416,961.27/404,658.35
  6. Step 6: Final answer
    x = 308,251.19

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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.