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Finding the Fourth Proportional to 419,979,610.60, 629,969,415.90 and 332,303,655.40

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Solution

The fourth proportional to 419,979,610.60, 629,969,415.90 and 332,303,655.40 is: 498,455,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,979,610.60 : 629,969,415.90 = 332,303,655.40 : x
  2. Step 2: Convert to fraction form
    419,979,610.60/629,969,415.90 = 332,303,655.40/x
  3. Step 3: Cross multiply
    419,979,610.60x = 629,969,415.90 × 332,303,655.40
  4. Step 4: Simplify right side
    419,979,610.60x = 209,341,139,693,772,864
  5. Step 5: Solve for x
    x = 209,341,139,693,772,864/419,979,610.60
  6. Step 6: Final answer
    x = 498,455,483.10

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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.