Home / 839,227.69-1,258,840.39-389,702.75

Finding the Fourth Proportional to 839,227.69, 1,258,840.39 and 389,702.75

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Solution

The fourth proportional to 839,227.69, 1,258,840.39 and 389,702.75 is: 584,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,227.69 : 1,258,840.39 = 389,702.75 : x
  2. Step 2: Convert to fraction form
    839,227.69/1,258,840.39 = 389,702.75/x
  3. Step 3: Cross multiply
    839,227.69x = 1,258,840.39 × 389,702.75
  4. Step 4: Simplify right side
    839,227.69x = 490,573,555,256.31
  5. Step 5: Solve for x
    x = 490,573,555,256.31/839,227.69
  6. Step 6: Final answer
    x = 584,553.59

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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.