Home / 408,405.40-563,593.14-227,110.36

Finding the Fourth Proportional to 408,405.40, 563,593.14 and 227,110.36

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Solution

The fourth proportional to 408,405.40, 563,593.14 and 227,110.36 is: 313,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,405.40 : 563,593.14 = 227,110.36 : x
  2. Step 2: Convert to fraction form
    408,405.40/563,593.14 = 227,110.36/x
  3. Step 3: Cross multiply
    408,405.40x = 563,593.14 × 227,110.36
  4. Step 4: Simplify right side
    408,405.40x = 127,997,840,918.93
  5. Step 5: Solve for x
    x = 127,997,840,918.93/408,405.40
  6. Step 6: Final answer
    x = 313,408.79

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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.