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Finding the Fourth Proportional to 603,620,120.70, 905,430,181.05 and 603,620,120.70

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Solution

The fourth proportional to 603,620,120.70, 905,430,181.05 and 603,620,120.70 is: 905,430,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,620,120.70 : 905,430,181.05 = 603,620,120.70 : x
  2. Step 2: Convert to fraction form
    603,620,120.70/905,430,181.05 = 603,620,120.70/x
  3. Step 3: Cross multiply
    603,620,120.70x = 905,430,181.05 × 603,620,120.70
  4. Step 4: Simplify right side
    603,620,120.70x = 546,535,875,170,823,872
  5. Step 5: Solve for x
    x = 546,535,875,170,823,872/603,620,120.70
  6. Step 6: Final answer
    x = 905,430,181.05

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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.