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Finding the Fourth Proportional to 443,496,856.80, 665,245,285.20 and 443,496,856.80

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Solution

The fourth proportional to 443,496,856.80, 665,245,285.20 and 443,496,856.80 is: 665,245,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,496,856.80 : 665,245,285.20 = 443,496,856.80 : x
  2. Step 2: Convert to fraction form
    443,496,856.80/665,245,285.20 = 443,496,856.80/x
  3. Step 3: Cross multiply
    443,496,856.80x = 665,245,285.20 × 443,496,856.80
  4. Step 4: Simplify right side
    443,496,856.80x = 295,034,192,987,219,584
  5. Step 5: Solve for x
    x = 295,034,192,987,219,584/443,496,856.80
  6. Step 6: Final answer
    x = 665,245,285.20

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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.