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Finding the Fourth Proportional to 330,879,285.80, 496,318,928.70 and 185,760,463.40

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Solution

The fourth proportional to 330,879,285.80, 496,318,928.70 and 185,760,463.40 is: 278,640,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,879,285.80 : 496,318,928.70 = 185,760,463.40 : x
  2. Step 2: Convert to fraction form
    330,879,285.80/496,318,928.70 = 185,760,463.40/x
  3. Step 3: Cross multiply
    330,879,285.80x = 496,318,928.70 × 185,760,463.40
  4. Step 4: Simplify right side
    330,879,285.80x = 92,196,434,189,503,568
  5. Step 5: Solve for x
    x = 92,196,434,189,503,568/330,879,285.80
  6. Step 6: Final answer
    x = 278,640,695.10

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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.