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Finding the Fourth Proportional to 662,448,099.76, 993,866,938.48 and 196,121,379.76

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Solution

The fourth proportional to 662,448,099.76, 993,866,938.48 and 196,121,379.76 is: 294,239,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,448,099.76 : 993,866,938.48 = 196,121,379.76 : x
  2. Step 2: Convert to fraction form
    662,448,099.76/993,866,938.48 = 196,121,379.76/x
  3. Step 3: Cross multiply
    662,448,099.76x = 993,866,938.48 × 196,121,379.76
  4. Step 4: Simplify right side
    662,448,099.76x = 194,918,555,272,544,640
  5. Step 5: Solve for x
    x = 194,918,555,272,544,640/662,448,099.76
  6. Step 6: Final answer
    x = 294,239,737.94

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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.