Home / 959,520.78-1,439,286.12-398,555.82

Finding the Fourth Proportional to 959,520.78, 1,439,286.12 and 398,555.82

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Solution

The fourth proportional to 959,520.78, 1,439,286.12 and 398,555.82 is: 597,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,520.78 : 1,439,286.12 = 398,555.82 : x
  2. Step 2: Convert to fraction form
    959,520.78/1,439,286.12 = 398,555.82/x
  3. Step 3: Cross multiply
    959,520.78x = 1,439,286.12 × 398,555.82
  4. Step 4: Simplify right side
    959,520.78x = 573,635,859,771.22
  5. Step 5: Solve for x
    x = 573,635,859,771.22/959,520.78
  6. Step 6: Final answer
    x = 597,835.79

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1.5x scale

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.