Home / 505,857,491.36-697,869,574.72-338,647,621.56

Finding the Fourth Proportional to 505,857,491.36, 697,869,574.72 and 338,647,621.56

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Solution

The fourth proportional to 505,857,491.36, 697,869,574.72 and 338,647,621.56 is: 467,190,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,857,491.36 : 697,869,574.72 = 338,647,621.56 : x
  2. Step 2: Convert to fraction form
    505,857,491.36/697,869,574.72 = 338,647,621.56/x
  3. Step 3: Cross multiply
    505,857,491.36x = 697,869,574.72 × 338,647,621.56
  4. Step 4: Simplify right side
    505,857,491.36x = 236,331,871,638,016,704
  5. Step 5: Solve for x
    x = 236,331,871,638,016,704/505,857,491.36
  6. Step 6: Final answer
    x = 467,190,613.31

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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.