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Finding the Fourth Proportional to 603,116.14, 908,909.94 and 543,219.67

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Solution

The fourth proportional to 603,116.14, 908,909.94 and 543,219.67 is: 818,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,116.14 : 908,909.94 = 543,219.67 : x
  2. Step 2: Convert to fraction form
    603,116.14/908,909.94 = 543,219.67/x
  3. Step 3: Cross multiply
    603,116.14x = 908,909.94 × 543,219.67
  4. Step 4: Simplify right side
    603,116.14x = 493,737,763,396.04
  5. Step 5: Solve for x
    x = 493,737,763,396.04/603,116.14
  6. Step 6: Final answer
    x = 818,644.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.