Home / 388,838.88-583,621.20-199,441.44

Finding the Fourth Proportional to 388,838.88, 583,621.20 and 199,441.44

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Solution

The fourth proportional to 388,838.88, 583,621.20 and 199,441.44 is: 299,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,838.88 : 583,621.20 = 199,441.44 : x
  2. Step 2: Convert to fraction form
    388,838.88/583,621.20 = 199,441.44/x
  3. Step 3: Cross multiply
    388,838.88x = 583,621.20 × 199,441.44
  4. Step 4: Simplify right side
    388,838.88x = 116,398,252,542.53
  5. Step 5: Solve for x
    x = 116,398,252,542.53/388,838.88
  6. Step 6: Final answer
    x = 299,348.29

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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.