Home / 414,605.12-621,905.63-161,911.27

Finding the Fourth Proportional to 414,605.12, 621,905.63 and 161,911.27

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Solution

The fourth proportional to 414,605.12, 621,905.63 and 161,911.27 is: 242,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,605.12 : 621,905.63 = 161,911.27 : x
  2. Step 2: Convert to fraction form
    414,605.12/621,905.63 = 161,911.27/x
  3. Step 3: Cross multiply
    414,605.12x = 621,905.63 × 161,911.27
  4. Step 4: Simplify right side
    414,605.12x = 100,693,531,252.03
  5. Step 5: Solve for x
    x = 100,693,531,252.03/414,605.12
  6. Step 6: Final answer
    x = 242,866.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.