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Finding the Fourth Proportional to 3,321,472,582.80, 4,978,807,651.80 and 1,940,576,288.40

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Solution

The fourth proportional to 3,321,472,582.80, 4,978,807,651.80 and 1,940,576,288.40 is: 2,908,877,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,472,582.80 : 4,978,807,651.80 = 1,940,576,288.40 : x
  2. Step 2: Convert to fraction form
    3,321,472,582.80/4,978,807,651.80 = 1,940,576,288.40/x
  3. Step 3: Cross multiply
    3,321,472,582.80x = 4,978,807,651.80 × 1,940,576,288.40
  4. Step 4: Simplify right side
    3,321,472,582.80x = 9,661,756,073,587,564,544
  5. Step 5: Solve for x
    x = 9,661,756,073,587,564,544/3,321,472,582.80
  6. Step 6: Final answer
    x = 2,908,877,262.34

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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.