Home / 699,403.20-1,049,623.20-512,779.20

Finding the Fourth Proportional to 699,403.20, 1,049,623.20 and 512,779.20

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Solution

The fourth proportional to 699,403.20, 1,049,623.20 and 512,779.20 is: 769,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,403.20 : 1,049,623.20 = 512,779.20 : x
  2. Step 2: Convert to fraction form
    699,403.20/1,049,623.20 = 512,779.20/x
  3. Step 3: Cross multiply
    699,403.20x = 1,049,623.20 × 512,779.20
  4. Step 4: Simplify right side
    699,403.20x = 538,224,944,797.44
  5. Step 5: Solve for x
    x = 538,224,944,797.44/699,403.20
  6. Step 6: Final answer
    x = 769,548.87

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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.