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Finding the Fourth Proportional to 802,487,662.65, 1,103,505,912.56 and 696,456,997.14

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Solution

The fourth proportional to 802,487,662.65, 1,103,505,912.56 and 696,456,997.14 is: 957,702,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,487,662.65 : 1,103,505,912.56 = 696,456,997.14 : x
  2. Step 2: Convert to fraction form
    802,487,662.65/1,103,505,912.56 = 696,456,997.14/x
  3. Step 3: Cross multiply
    802,487,662.65x = 1,103,505,912.56 × 696,456,997.14
  4. Step 4: Simplify right side
    802,487,662.65x = 768,544,414,187,772,928
  5. Step 5: Solve for x
    x = 768,544,414,187,772,928/802,487,662.65
  6. Step 6: Final answer
    x = 957,702,466.91

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1.5x scale

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.