Home / 388,764.15-536,311.17-227,519.34

Finding the Fourth Proportional to 388,764.15, 536,311.17 and 227,519.34

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Solution

The fourth proportional to 388,764.15, 536,311.17 and 227,519.34 is: 313,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,764.15 : 536,311.17 = 227,519.34 : x
  2. Step 2: Convert to fraction form
    388,764.15/536,311.17 = 227,519.34/x
  3. Step 3: Cross multiply
    388,764.15x = 536,311.17 × 227,519.34
  4. Step 4: Simplify right side
    388,764.15x = 122,021,163,433.03
  5. Step 5: Solve for x
    x = 122,021,163,433.03/388,764.15
  6. Step 6: Final answer
    x = 313,869.38

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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.