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Finding the Fourth Proportional to 395,489.02, 593,139.44 and 170,726.47

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Solution

The fourth proportional to 395,489.02, 593,139.44 and 170,726.47 is: 256,049.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,489.02 : 593,139.44 = 170,726.47 : x
  2. Step 2: Convert to fraction form
    395,489.02/593,139.44 = 170,726.47/x
  3. Step 3: Cross multiply
    395,489.02x = 593,139.44 × 170,726.47
  4. Step 4: Simplify right side
    395,489.02x = 101,264,602,808.98
  5. Step 5: Solve for x
    x = 101,264,602,808.98/395,489.02
  6. Step 6: Final answer
    x = 256,049.09

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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.