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Finding the Fourth Proportional to 617,764,699.44, 852,567,860.82 and 349,888,181.88

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Solution

The fourth proportional to 617,764,699.44, 852,567,860.82 and 349,888,181.88 is: 482,875,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,764,699.44 : 852,567,860.82 = 349,888,181.88 : x
  2. Step 2: Convert to fraction form
    617,764,699.44/852,567,860.82 = 349,888,181.88/x
  3. Step 3: Cross multiply
    617,764,699.44x = 852,567,860.82 × 349,888,181.88
  4. Step 4: Simplify right side
    617,764,699.44x = 298,303,418,751,630,720
  5. Step 5: Solve for x
    x = 298,303,418,751,630,720/617,764,699.44
  6. Step 6: Final answer
    x = 482,875,468.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.