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Finding the Fourth Proportional to 453,296,859.80, 679,945,289.70 and 354,661,410.20

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Solution

The fourth proportional to 453,296,859.80, 679,945,289.70 and 354,661,410.20 is: 531,992,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,296,859.80 : 679,945,289.70 = 354,661,410.20 : x
  2. Step 2: Convert to fraction form
    453,296,859.80/679,945,289.70 = 354,661,410.20/x
  3. Step 3: Cross multiply
    453,296,859.80x = 679,945,289.70 × 354,661,410.20
  4. Step 4: Simplify right side
    453,296,859.80x = 241,150,355,303,849,536
  5. Step 5: Solve for x
    x = 241,150,355,303,849,536/453,296,859.80
  6. Step 6: Final answer
    x = 531,992,115.30

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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.