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Finding the Fourth Proportional to 376,697.79, 519,868.40 and 206,933.67

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Solution

The fourth proportional to 376,697.79, 519,868.40 and 206,933.67 is: 285,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,697.79 : 519,868.40 = 206,933.67 : x
  2. Step 2: Convert to fraction form
    376,697.79/519,868.40 = 206,933.67/x
  3. Step 3: Cross multiply
    376,697.79x = 519,868.40 × 206,933.67
  4. Step 4: Simplify right side
    376,697.79x = 107,578,274,894.36
  5. Step 5: Solve for x
    x = 107,578,274,894.36/376,697.79
  6. Step 6: Final answer
    x = 285,582.44

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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.