Home / 483,515.78-667,239.73-268,656.40

Finding the Fourth Proportional to 483,515.78, 667,239.73 and 268,656.40

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Solution

The fourth proportional to 483,515.78, 667,239.73 and 268,656.40 is: 370,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,515.78 : 667,239.73 = 268,656.40 : x
  2. Step 2: Convert to fraction form
    483,515.78/667,239.73 = 268,656.40/x
  3. Step 3: Cross multiply
    483,515.78x = 667,239.73 × 268,656.40
  4. Step 4: Simplify right side
    483,515.78x = 179,258,220,207.96
  5. Step 5: Solve for x
    x = 179,258,220,207.96/483,515.78
  6. Step 6: Final answer
    x = 370,739.13

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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.