Home / 2,780,538.80-4,170,808.20-985,449.20

Finding the Fourth Proportional to 2,780,538.80, 4,170,808.20 and 985,449.20

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Solution

The fourth proportional to 2,780,538.80, 4,170,808.20 and 985,449.20 is: 1,478,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,538.80 : 4,170,808.20 = 985,449.20 : x
  2. Step 2: Convert to fraction form
    2,780,538.80/4,170,808.20 = 985,449.20/x
  3. Step 3: Cross multiply
    2,780,538.80x = 4,170,808.20 × 985,449.20
  4. Step 4: Simplify right side
    2,780,538.80x = 4,110,119,604,043.44
  5. Step 5: Solve for x
    x = 4,110,119,604,043.44/2,780,538.80
  6. Step 6: Final answer
    x = 1,478,173.80

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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.