Home / 857,961.20-1,286,941.80-543,810.80

Finding the Fourth Proportional to 857,961.20, 1,286,941.80 and 543,810.80

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Solution

The fourth proportional to 857,961.20, 1,286,941.80 and 543,810.80 is: 815,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,961.20 : 1,286,941.80 = 543,810.80 : x
  2. Step 2: Convert to fraction form
    857,961.20/1,286,941.80 = 543,810.80/x
  3. Step 3: Cross multiply
    857,961.20x = 1,286,941.80 × 543,810.80
  4. Step 4: Simplify right side
    857,961.20x = 699,852,849,811.44
  5. Step 5: Solve for x
    x = 699,852,849,811.44/857,961.20
  6. Step 6: Final answer
    x = 815,716.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.