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Finding the Fourth Proportional to 330,815,919.60, 496,223,879.40 and 330,815,919.60

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Solution

The fourth proportional to 330,815,919.60, 496,223,879.40 and 330,815,919.60 is: 496,223,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,815,919.60 : 496,223,879.40 = 330,815,919.60 : x
  2. Step 2: Convert to fraction form
    330,815,919.60/496,223,879.40 = 330,815,919.60/x
  3. Step 3: Cross multiply
    330,815,919.60x = 496,223,879.40 × 330,815,919.60
  4. Step 4: Simplify right side
    330,815,919.60x = 164,158,758,991,190,496
  5. Step 5: Solve for x
    x = 164,158,758,991,190,496/330,815,919.60
  6. Step 6: Final answer
    x = 496,223,879.40

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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.