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Finding the Fourth Proportional to 655,691,808.69, 983,429,980.91 and 235,426,180.73

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Solution

The fourth proportional to 655,691,808.69, 983,429,980.91 and 235,426,180.73 is: 353,100,589.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,691,808.69 : 983,429,980.91 = 235,426,180.73 : x
  2. Step 2: Convert to fraction form
    655,691,808.69/983,429,980.91 = 235,426,180.73/x
  3. Step 3: Cross multiply
    655,691,808.69x = 983,429,980.91 × 235,426,180.73
  4. Step 4: Simplify right side
    655,691,808.69x = 231,525,164,418,145,824
  5. Step 5: Solve for x
    x = 231,525,164,418,145,824/655,691,808.69
  6. Step 6: Final answer
    x = 353,100,589.86

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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.