Home / 398,922.36-597,963.48-132,611.40

Finding the Fourth Proportional to 398,922.36, 597,963.48 and 132,611.40

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Solution

The fourth proportional to 398,922.36, 597,963.48 and 132,611.40 is: 198,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,922.36 : 597,963.48 = 132,611.40 : x
  2. Step 2: Convert to fraction form
    398,922.36/597,963.48 = 132,611.40/x
  3. Step 3: Cross multiply
    398,922.36x = 597,963.48 × 132,611.40
  4. Step 4: Simplify right side
    398,922.36x = 79,296,774,231.67
  5. Step 5: Solve for x
    x = 79,296,774,231.67/398,922.36
  6. Step 6: Final answer
    x = 198,777.46

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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.