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Finding the Fourth Proportional to 512,999.65, 707,842.06 and 321,926.93

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Solution

The fourth proportional to 512,999.65, 707,842.06 and 321,926.93 is: 444,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,999.65 : 707,842.06 = 321,926.93 : x
  2. Step 2: Convert to fraction form
    512,999.65/707,842.06 = 321,926.93/x
  3. Step 3: Cross multiply
    512,999.65x = 707,842.06 × 321,926.93
  4. Step 4: Simplify right side
    512,999.65x = 227,873,421,300.68
  5. Step 5: Solve for x
    x = 227,873,421,300.68/512,999.65
  6. Step 6: Final answer
    x = 444,198.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.