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Finding the Fourth Proportional to 413,753,431,645.80, 620,630,147,468.70 and 413,753,431,645.80

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Solution

The fourth proportional to 413,753,431,645.80, 620,630,147,468.70 and 413,753,431,645.80 is: 620,630,147,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,753,431,645.80 : 620,630,147,468.70 = 413,753,431,645.80 : x
  2. Step 2: Convert to fraction form
    413,753,431,645.80/620,630,147,468.70 = 413,753,431,645.80/x
  3. Step 3: Cross multiply
    413,753,431,645.80x = 620,630,147,468.70 × 413,753,431,645.80
  4. Step 4: Simplify right side
    413,753,431,645.80x = 256,787,853,298,013,522,886,656
  5. Step 5: Solve for x
    x = 256,787,853,298,013,522,886,656/413,753,431,645.80
  6. Step 6: Final answer
    x = 620,630,147,468.70

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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.