Home / 928,556.37-1,281,011.22-641,578.23

Finding the Fourth Proportional to 928,556.37, 1,281,011.22 and 641,578.23

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Solution

The fourth proportional to 928,556.37, 1,281,011.22 and 641,578.23 is: 885,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,556.37 : 1,281,011.22 = 641,578.23 : x
  2. Step 2: Convert to fraction form
    928,556.37/1,281,011.22 = 641,578.23/x
  3. Step 3: Cross multiply
    928,556.37x = 1,281,011.22 × 641,578.23
  4. Step 4: Simplify right side
    928,556.37x = 821,868,911,137.74
  5. Step 5: Solve for x
    x = 821,868,911,137.74/928,556.37
  6. Step 6: Final answer
    x = 885,103.95

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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.