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Finding the Fourth Proportional to 484,605.64, 726,908.26 and 129,610.48

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Solution

The fourth proportional to 484,605.64, 726,908.26 and 129,610.48 is: 194,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,605.64 : 726,908.26 = 129,610.48 : x
  2. Step 2: Convert to fraction form
    484,605.64/726,908.26 = 129,610.48/x
  3. Step 3: Cross multiply
    484,605.64x = 726,908.26 × 129,610.48
  4. Step 4: Simplify right side
    484,605.64x = 94,214,928,494.56
  5. Step 5: Solve for x
    x = 94,214,928,494.56/484,605.64
  6. Step 6: Final answer
    x = 194,415.67

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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.