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Finding the Fourth Proportional to 322,446,519.70, 483,669,779.55 and 192,987,492.10

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Solution

The fourth proportional to 322,446,519.70, 483,669,779.55 and 192,987,492.10 is: 289,481,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,446,519.70 : 483,669,779.55 = 192,987,492.10 : x
  2. Step 2: Convert to fraction form
    322,446,519.70/483,669,779.55 = 192,987,492.10/x
  3. Step 3: Cross multiply
    322,446,519.70x = 483,669,779.55 × 192,987,492.10
  4. Step 4: Simplify right side
    322,446,519.70x = 93,342,217,759,914,368
  5. Step 5: Solve for x
    x = 93,342,217,759,914,368/322,446,519.70
  6. Step 6: Final answer
    x = 289,481,238.15

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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.