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Finding the Fourth Proportional to 1,693,195,398.63, 2,336,082,497.25 and 978,470,569.83

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Solution

The fourth proportional to 1,693,195,398.63, 2,336,082,497.25 and 978,470,569.83 is: 1,349,984,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,195,398.63 : 2,336,082,497.25 = 978,470,569.83 : x
  2. Step 2: Convert to fraction form
    1,693,195,398.63/2,336,082,497.25 = 978,470,569.83/x
  3. Step 3: Cross multiply
    1,693,195,398.63x = 2,336,082,497.25 × 978,470,569.83
  4. Step 4: Simplify right side
    1,693,195,398.63x = 2,285,787,972,254,096,896
  5. Step 5: Solve for x
    x = 2,285,787,972,254,096,896/1,693,195,398.63
  6. Step 6: Final answer
    x = 1,349,984,753.15

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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.