Home / 451,240.36-622,644.40-279,331.24

Finding the Fourth Proportional to 451,240.36, 622,644.40 and 279,331.24

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Solution

The fourth proportional to 451,240.36, 622,644.40 and 279,331.24 is: 385,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,240.36 : 622,644.40 = 279,331.24 : x
  2. Step 2: Convert to fraction form
    451,240.36/622,644.40 = 279,331.24/x
  3. Step 3: Cross multiply
    451,240.36x = 622,644.40 × 279,331.24
  4. Step 4: Simplify right side
    451,240.36x = 173,924,032,331.06
  5. Step 5: Solve for x
    x = 173,924,032,331.06/451,240.36
  6. Step 6: Final answer
    x = 385,435.45

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1.5x scale

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.