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Finding the Fourth Proportional to 552,561.78, 828,980.62 and 192,737.85

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Solution

The fourth proportional to 552,561.78, 828,980.62 and 192,737.85 is: 289,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,561.78 : 828,980.62 = 192,737.85 : x
  2. Step 2: Convert to fraction form
    552,561.78/828,980.62 = 192,737.85/x
  3. Step 3: Cross multiply
    552,561.78x = 828,980.62 × 192,737.85
  4. Step 4: Simplify right side
    552,561.78x = 159,775,942,390.47
  5. Step 5: Solve for x
    x = 159,775,942,390.47/552,561.78
  6. Step 6: Final answer
    x = 289,154.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.