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Finding the Fourth Proportional to 395,695.46, 593,670.33 and 129,395.41

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Solution

The fourth proportional to 395,695.46, 593,670.33 and 129,395.41 is: 194,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,695.46 : 593,670.33 = 129,395.41 : x
  2. Step 2: Convert to fraction form
    395,695.46/593,670.33 = 129,395.41/x
  3. Step 3: Cross multiply
    395,695.46x = 593,670.33 × 129,395.41
  4. Step 4: Simplify right side
    395,695.46x = 76,818,214,271.01
  5. Step 5: Solve for x
    x = 76,818,214,271.01/395,695.46
  6. Step 6: Final answer
    x = 194,134.69

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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.