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Finding the Fourth Proportional to 949,968,345.60, 1,422,685,036.78 and 949,968,345.60

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Solution

The fourth proportional to 949,968,345.60, 1,422,685,036.78 and 949,968,345.60 is: 1,422,685,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,968,345.60 : 1,422,685,036.78 = 949,968,345.60 : x
  2. Step 2: Convert to fraction form
    949,968,345.60/1,422,685,036.78 = 949,968,345.60/x
  3. Step 3: Cross multiply
    949,968,345.60x = 1,422,685,036.78 × 949,968,345.60
  4. Step 4: Simplify right side
    949,968,345.60x = 1,351,505,750,699,771,648
  5. Step 5: Solve for x
    x = 1,351,505,750,699,771,648/949,968,345.60
  6. Step 6: Final answer
    x = 1,422,685,036.78

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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.