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Finding the Fourth Proportional to 404,920.04, 558,793.86 and 223,636.58

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Solution

The fourth proportional to 404,920.04, 558,793.86 and 223,636.58 is: 308,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,920.04 : 558,793.86 = 223,636.58 : x
  2. Step 2: Convert to fraction form
    404,920.04/558,793.86 = 223,636.58/x
  3. Step 3: Cross multiply
    404,920.04x = 558,793.86 × 223,636.58
  4. Step 4: Simplify right side
    404,920.04x = 124,966,747,775.40
  5. Step 5: Solve for x
    x = 124,966,747,775.40/404,920.04
  6. Step 6: Final answer
    x = 308,620.80

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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.