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Finding the Fourth Proportional to 568,052.60, 851,754.90 and 213,078.20

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Solution

The fourth proportional to 568,052.60, 851,754.90 and 213,078.20 is: 319,495.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,052.60 : 851,754.90 = 213,078.20 : x
  2. Step 2: Convert to fraction form
    568,052.60/851,754.90 = 213,078.20/x
  3. Step 3: Cross multiply
    568,052.60x = 851,754.90 × 213,078.20
  4. Step 4: Simplify right side
    568,052.60x = 181,490,400,933.18
  5. Step 5: Solve for x
    x = 181,490,400,933.18/568,052.60
  6. Step 6: Final answer
    x = 319,495.77

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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.