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Finding the Fourth Proportional to 547,621,519, 755,978,285.77 and 366,879,717.03

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Solution

The fourth proportional to 547,621,519, 755,978,285.77 and 366,879,717.03 is: 506,468,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,621,519 : 755,978,285.77 = 366,879,717.03 : x
  2. Step 2: Convert to fraction form
    547,621,519/755,978,285.77 = 366,879,717.03/x
  3. Step 3: Cross multiply
    547,621,519x = 755,978,285.77 × 366,879,717.03
  4. Step 4: Simplify right side
    547,621,519x = 277,353,099,564,122,048
  5. Step 5: Solve for x
    x = 277,353,099,564,122,048/547,621,519
  6. Step 6: Final answer
    x = 506,468,591.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.