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Finding the Fourth Proportional to 647,608,866.43, 893,700,212.77 and 350,251,101.42

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Solution

The fourth proportional to 647,608,866.43, 893,700,212.77 and 350,251,101.42 is: 483,346,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,608,866.43 : 893,700,212.77 = 350,251,101.42 : x
  2. Step 2: Convert to fraction form
    647,608,866.43/893,700,212.77 = 350,251,101.42/x
  3. Step 3: Cross multiply
    647,608,866.43x = 893,700,212.77 × 350,251,101.42
  4. Step 4: Simplify right side
    647,608,866.43x = 313,019,483,856,716,544
  5. Step 5: Solve for x
    x = 313,019,483,856,716,544/647,608,866.43
  6. Step 6: Final answer
    x = 483,346,507.56

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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.