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Finding the Fourth Proportional to 275,280,672,861.55, 412,921,009,292.32 and 275,280,672,861.55

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Solution

The fourth proportional to 275,280,672,861.55, 412,921,009,292.32 and 275,280,672,861.55 is: 412,921,009,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,280,672,861.55 : 412,921,009,292.32 = 275,280,672,861.55 : x
  2. Step 2: Convert to fraction form
    275,280,672,861.55/412,921,009,292.32 = 275,280,672,861.55/x
  3. Step 3: Cross multiply
    275,280,672,861.55x = 412,921,009,292.32 × 275,280,672,861.55
  4. Step 4: Simplify right side
    275,280,672,861.55x = 113,669,173,276,660,182,548,480
  5. Step 5: Solve for x
    x = 113,669,173,276,660,182,548,480/275,280,672,861.55
  6. Step 6: Final answer
    x = 412,921,009,292.32

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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.