Home / 854,029.20-1,281,043.80-539,878.80

Finding the Fourth Proportional to 854,029.20, 1,281,043.80 and 539,878.80

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Solution

The fourth proportional to 854,029.20, 1,281,043.80 and 539,878.80 is: 809,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,029.20 : 1,281,043.80 = 539,878.80 : x
  2. Step 2: Convert to fraction form
    854,029.20/1,281,043.80 = 539,878.80/x
  3. Step 3: Cross multiply
    854,029.20x = 1,281,043.80 × 539,878.80
  4. Step 4: Simplify right side
    854,029.20x = 691,608,389,491.44
  5. Step 5: Solve for x
    x = 691,608,389,491.44/854,029.20
  6. Step 6: Final answer
    x = 809,818.20

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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.