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Finding the Fourth Proportional to 351,932,964.20, 493,726,516.60 and 351,932,964.20

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Solution

The fourth proportional to 351,932,964.20, 493,726,516.60 and 351,932,964.20 is: 493,726,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,932,964.20 : 493,726,516.60 = 351,932,964.20 : x
  2. Step 2: Convert to fraction form
    351,932,964.20/493,726,516.60 = 351,932,964.20/x
  3. Step 3: Cross multiply
    351,932,964.20x = 493,726,516.60 × 351,932,964.20
  4. Step 4: Simplify right side
    351,932,964.20x = 173,758,636,491,178,496
  5. Step 5: Solve for x
    x = 173,758,636,491,178,496/351,932,964.20
  6. Step 6: Final answer
    x = 493,726,516.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.