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Finding the Fourth Proportional to 359,501.78, 496,292.21 and 223,579.52

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Solution

The fourth proportional to 359,501.78, 496,292.21 and 223,579.52 is: 308,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,501.78 : 496,292.21 = 223,579.52 : x
  2. Step 2: Convert to fraction form
    359,501.78/496,292.21 = 223,579.52/x
  3. Step 3: Cross multiply
    359,501.78x = 496,292.21 × 223,579.52
  4. Step 4: Simplify right side
    359,501.78x = 110,960,777,240.98
  5. Step 5: Solve for x
    x = 110,960,777,240.98/359,501.78
  6. Step 6: Final answer
    x = 308,651.54

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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.