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Finding the Fourth Proportional to 311,485,938.40, 467,228,907.60 and 311,485,938.40

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Solution

The fourth proportional to 311,485,938.40, 467,228,907.60 and 311,485,938.40 is: 467,228,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,485,938.40 : 467,228,907.60 = 311,485,938.40 : x
  2. Step 2: Convert to fraction form
    311,485,938.40/467,228,907.60 = 311,485,938.40/x
  3. Step 3: Cross multiply
    311,485,938.40x = 467,228,907.60 × 311,485,938.40
  4. Step 4: Simplify right side
    311,485,938.40x = 145,535,234,731,392,896
  5. Step 5: Solve for x
    x = 145,535,234,731,392,896/311,485,938.40
  6. Step 6: Final answer
    x = 467,228,907.60

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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.