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Finding the Fourth Proportional to 262,439,366.40, 393,659,049.60 and 262,439,366.40

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Solution

The fourth proportional to 262,439,366.40, 393,659,049.60 and 262,439,366.40 is: 393,659,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,439,366.40 : 393,659,049.60 = 262,439,366.40 : x
  2. Step 2: Convert to fraction form
    262,439,366.40/393,659,049.60 = 262,439,366.40/x
  3. Step 3: Cross multiply
    262,439,366.40x = 393,659,049.60 × 262,439,366.40
  4. Step 4: Simplify right side
    262,439,366.40x = 103,311,631,554,650,176
  5. Step 5: Solve for x
    x = 103,311,631,554,650,176/262,439,366.40
  6. Step 6: Final answer
    x = 393,659,049.60

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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.