Home / 414,121.68-621,196.43-114,577.20

Finding the Fourth Proportional to 414,121.68, 621,196.43 and 114,577.20

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Solution

The fourth proportional to 414,121.68, 621,196.43 and 114,577.20 is: 171,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,121.68 : 621,196.43 = 114,577.20 : x
  2. Step 2: Convert to fraction form
    414,121.68/621,196.43 = 114,577.20/x
  3. Step 3: Cross multiply
    414,121.68x = 621,196.43 × 114,577.20
  4. Step 4: Simplify right side
    414,121.68x = 71,174,947,026.51
  5. Step 5: Solve for x
    x = 71,174,947,026.51/414,121.68
  6. Step 6: Final answer
    x = 171,869.65

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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.