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Finding the Fourth Proportional to 683,561.50, 943,311.84 and 377,637.93

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Solution

The fourth proportional to 683,561.50, 943,311.84 and 377,637.93 is: 521,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,561.50 : 943,311.84 = 377,637.93 : x
  2. Step 2: Convert to fraction form
    683,561.50/943,311.84 = 377,637.93/x
  3. Step 3: Cross multiply
    683,561.50x = 943,311.84 × 377,637.93
  4. Step 4: Simplify right side
    683,561.50x = 356,230,329,185.95
  5. Step 5: Solve for x
    x = 356,230,329,185.95/683,561.50
  6. Step 6: Final answer
    x = 521,138.67

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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.