Home / 414,579.40-622,022.70-399,219.40

Finding the Fourth Proportional to 414,579.40, 622,022.70 and 399,219.40

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Solution

The fourth proportional to 414,579.40, 622,022.70 and 399,219.40 is: 598,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,579.40 : 622,022.70 = 399,219.40 : x
  2. Step 2: Convert to fraction form
    414,579.40/622,022.70 = 399,219.40/x
  3. Step 3: Cross multiply
    414,579.40x = 622,022.70 × 399,219.40
  4. Step 4: Simplify right side
    414,579.40x = 248,323,529,080.38
  5. Step 5: Solve for x
    x = 248,323,529,080.38/414,579.40
  6. Step 6: Final answer
    x = 598,977.01

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1.5x scale

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.