Home / 414,605.30-621,905.91-161,911.46

Finding the Fourth Proportional to 414,605.30, 621,905.91 and 161,911.46

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Solution

The fourth proportional to 414,605.30, 621,905.91 and 161,911.46 is: 242,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,605.30 : 621,905.91 = 161,911.46 : x
  2. Step 2: Convert to fraction form
    414,605.30/621,905.91 = 161,911.46/x
  3. Step 3: Cross multiply
    414,605.30x = 621,905.91 × 161,911.46
  4. Step 4: Simplify right side
    414,605.30x = 100,693,695,425.49
  5. Step 5: Solve for x
    x = 100,693,695,425.49/414,605.30
  6. Step 6: Final answer
    x = 242,866.40

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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.