Home / 860,199.45-1,289,684.78-404,535.57

Finding the Fourth Proportional to 860,199.45, 1,289,684.78 and 404,535.57

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Solution

The fourth proportional to 860,199.45, 1,289,684.78 and 404,535.57 is: 606,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,199.45 : 1,289,684.78 = 404,535.57 : x
  2. Step 2: Convert to fraction form
    860,199.45/1,289,684.78 = 404,535.57/x
  3. Step 3: Cross multiply
    860,199.45x = 1,289,684.78 × 404,535.57
  4. Step 4: Simplify right side
    860,199.45x = 521,723,367,597.63
  5. Step 5: Solve for x
    x = 521,723,367,597.63/860,199.45
  6. Step 6: Final answer
    x = 606,514.42

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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.