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Finding the Fourth Proportional to 404,704.84, 558,497.19 and 223,416.86

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Solution

The fourth proportional to 404,704.84, 558,497.19 and 223,416.86 is: 308,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,704.84 : 558,497.19 = 223,416.86 : x
  2. Step 2: Convert to fraction form
    404,704.84/558,497.19 = 223,416.86/x
  3. Step 3: Cross multiply
    404,704.84x = 558,497.19 × 223,416.86
  4. Step 4: Simplify right side
    404,704.84x = 124,777,688,508.62
  5. Step 5: Solve for x
    x = 124,777,688,508.62/404,704.84
  6. Step 6: Final answer
    x = 308,317.76

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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.