Home / 838,698.18-1,257,891.75-277,659.78

Finding the Fourth Proportional to 838,698.18, 1,257,891.75 and 277,659.78

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Solution

The fourth proportional to 838,698.18, 1,257,891.75 and 277,659.78 is: 416,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,698.18 : 1,257,891.75 = 277,659.78 : x
  2. Step 2: Convert to fraction form
    838,698.18/1,257,891.75 = 277,659.78/x
  3. Step 3: Cross multiply
    838,698.18x = 1,257,891.75 × 277,659.78
  4. Step 4: Simplify right side
    838,698.18x = 349,265,946,568.82
  5. Step 5: Solve for x
    x = 349,265,946,568.82/838,698.18
  6. Step 6: Final answer
    x = 416,438.18

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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.