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Finding the Fourth Proportional to 568,485.36, 852,278.22 and 213,459.84

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Solution

The fourth proportional to 568,485.36, 852,278.22 and 213,459.84 is: 320,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,485.36 : 852,278.22 = 213,459.84 : x
  2. Step 2: Convert to fraction form
    568,485.36/852,278.22 = 213,459.84/x
  3. Step 3: Cross multiply
    568,485.36x = 852,278.22 × 213,459.84
  4. Step 4: Simplify right side
    568,485.36x = 181,927,172,476.69
  5. Step 5: Solve for x
    x = 181,927,172,476.69/568,485.36
  6. Step 6: Final answer
    x = 320,020.86

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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.