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Finding the Fourth Proportional to 683,851.91, 943,666.21 and 377,924.63

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Solution

The fourth proportional to 683,851.91, 943,666.21 and 377,924.63 is: 521,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,851.91 : 943,666.21 = 377,924.63 : x
  2. Step 2: Convert to fraction form
    683,851.91/943,666.21 = 377,924.63/x
  3. Step 3: Cross multiply
    683,851.91x = 943,666.21 × 377,924.63
  4. Step 4: Simplify right side
    683,851.91x = 356,634,703,257.75
  5. Step 5: Solve for x
    x = 356,634,703,257.75/683,851.91
  6. Step 6: Final answer
    x = 521,508.67

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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.