Home / 515,816.36-711,644.10-337,072.04

Finding the Fourth Proportional to 515,816.36, 711,644.10 and 337,072.04

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Solution

The fourth proportional to 515,816.36, 711,644.10 and 337,072.04 is: 465,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,816.36 : 711,644.10 = 337,072.04 : x
  2. Step 2: Convert to fraction form
    515,816.36/711,644.10 = 337,072.04/x
  3. Step 3: Cross multiply
    515,816.36x = 711,644.10 × 337,072.04
  4. Step 4: Simplify right side
    515,816.36x = 239,875,328,540.96
  5. Step 5: Solve for x
    x = 239,875,328,540.96/515,816.36
  6. Step 6: Final answer
    x = 465,040.17

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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.