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Finding the Fourth Proportional to 398,628,604.30, 597,942,906.45 and 398,628,604.30

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Solution

The fourth proportional to 398,628,604.30, 597,942,906.45 and 398,628,604.30 is: 597,942,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,628,604.30 : 597,942,906.45 = 398,628,604.30 : x
  2. Step 2: Convert to fraction form
    398,628,604.30/597,942,906.45 = 398,628,604.30/x
  3. Step 3: Cross multiply
    398,628,604.30x = 597,942,906.45 × 398,628,604.30
  4. Step 4: Simplify right side
    398,628,604.30x = 238,357,146,249,248,992
  5. Step 5: Solve for x
    x = 238,357,146,249,248,992/398,628,604.30
  6. Step 6: Final answer
    x = 597,942,906.45

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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.