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Finding the Fourth Proportional to 603,620,512.95, 905,430,769.43 and 603,620,512.95

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Solution

The fourth proportional to 603,620,512.95, 905,430,769.43 and 603,620,512.95 is: 905,430,769.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,620,512.95 : 905,430,769.43 = 603,620,512.95 : x
  2. Step 2: Convert to fraction form
    603,620,512.95/905,430,769.43 = 603,620,512.95/x
  3. Step 3: Cross multiply
    603,620,512.95x = 905,430,769.43 × 603,620,512.95
  4. Step 4: Simplify right side
    603,620,512.95x = 546,536,585,481,031,680
  5. Step 5: Solve for x
    x = 546,536,585,481,031,680/603,620,512.95
  6. Step 6: Final answer
    x = 905,430,769.43

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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.