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Finding the Fourth Proportional to 568,036.60, 851,730.90 and 213,062.20

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Solution

The fourth proportional to 568,036.60, 851,730.90 and 213,062.20 is: 319,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,036.60 : 851,730.90 = 213,062.20 : x
  2. Step 2: Convert to fraction form
    568,036.60/851,730.90 = 213,062.20/x
  3. Step 3: Cross multiply
    568,036.60x = 851,730.90 × 213,062.20
  4. Step 4: Simplify right side
    568,036.60x = 181,471,659,361.98
  5. Step 5: Solve for x
    x = 181,471,659,361.98/568,036.60
  6. Step 6: Final answer
    x = 319,471.77

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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.