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Finding the Fourth Proportional to 818,717, 1,228,119.24 and 257,795.24

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Solution

The fourth proportional to 818,717, 1,228,119.24 and 257,795.24 is: 386,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,717 : 1,228,119.24 = 257,795.24 : x
  2. Step 2: Convert to fraction form
    818,717/1,228,119.24 = 257,795.24/x
  3. Step 3: Cross multiply
    818,717x = 1,228,119.24 × 257,795.24
  4. Step 4: Simplify right side
    818,717x = 316,603,294,224.42
  5. Step 5: Solve for x
    x = 316,603,294,224.42/818,717
  6. Step 6: Final answer
    x = 386,706.63

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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.