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Finding the Fourth Proportional to 710,014,230.23, 979,800,842.41 and 396,751,018.37

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Solution

The fourth proportional to 710,014,230.23, 979,800,842.41 and 396,751,018.37 is: 547,505,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,014,230.23 : 979,800,842.41 = 396,751,018.37 : x
  2. Step 2: Convert to fraction form
    710,014,230.23/979,800,842.41 = 396,751,018.37/x
  3. Step 3: Cross multiply
    710,014,230.23x = 979,800,842.41 × 396,751,018.37
  4. Step 4: Simplify right side
    710,014,230.23x = 388,736,982,025,951,360
  5. Step 5: Solve for x
    x = 388,736,982,025,951,360/710,014,230.23
  6. Step 6: Final answer
    x = 547,505,902.66

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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.