Home / 847,761.68-1,268,519.16-511,000.40

Finding the Fourth Proportional to 847,761.68, 1,268,519.16 and 511,000.40

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Solution

The fourth proportional to 847,761.68, 1,268,519.16 and 511,000.40 is: 764,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,761.68 : 1,268,519.16 = 511,000.40 : x
  2. Step 2: Convert to fraction form
    847,761.68/1,268,519.16 = 511,000.40/x
  3. Step 3: Cross multiply
    847,761.68x = 1,268,519.16 × 511,000.40
  4. Step 4: Simplify right side
    847,761.68x = 648,213,798,167.66
  5. Step 5: Solve for x
    x = 648,213,798,167.66/847,761.68
  6. Step 6: Final answer
    x = 764,617.95

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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.