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Finding the Fourth Proportional to 538,028.68, 800,691.61 and 520,089.80

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Solution

The fourth proportional to 538,028.68, 800,691.61 and 520,089.80 is: 773,995.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,028.68 : 800,691.61 = 520,089.80 : x
  2. Step 2: Convert to fraction form
    538,028.68/800,691.61 = 520,089.80/x
  3. Step 3: Cross multiply
    538,028.68x = 800,691.61 × 520,089.80
  4. Step 4: Simplify right side
    538,028.68x = 416,431,539,306.58
  5. Step 5: Solve for x
    x = 416,431,539,306.58/538,028.68
  6. Step 6: Final answer
    x = 773,995.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.