Home / 451,236.36-622,638.90-279,327.24

Finding the Fourth Proportional to 451,236.36, 622,638.90 and 279,327.24

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Solution

The fourth proportional to 451,236.36, 622,638.90 and 279,327.24 is: 385,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,236.36 : 622,638.90 = 279,327.24 : x
  2. Step 2: Convert to fraction form
    451,236.36/622,638.90 = 279,327.24/x
  3. Step 3: Cross multiply
    451,236.36x = 622,638.90 × 279,327.24
  4. Step 4: Simplify right side
    451,236.36x = 173,920,005,453.64
  5. Step 5: Solve for x
    x = 173,920,005,453.64/451,236.36
  6. Step 6: Final answer
    x = 385,429.95

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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.