Home / 856,928.20-1,285,572.06-257,933.20

Finding the Fourth Proportional to 856,928.20, 1,285,572.06 and 257,933.20

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Solution

The fourth proportional to 856,928.20, 1,285,572.06 and 257,933.20 is: 386,953.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,928.20 : 1,285,572.06 = 257,933.20 : x
  2. Step 2: Convert to fraction form
    856,928.20/1,285,572.06 = 257,933.20/x
  3. Step 3: Cross multiply
    856,928.20x = 1,285,572.06 × 257,933.20
  4. Step 4: Simplify right side
    856,928.20x = 331,591,715,266.39
  5. Step 5: Solve for x
    x = 331,591,715,266.39/856,928.20
  6. Step 6: Final answer
    x = 386,953.91

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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.