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Finding the Fourth Proportional to 484,412.00, 726,560.89 and 129,453.39

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Solution

The fourth proportional to 484,412.00, 726,560.89 and 129,453.39 is: 194,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,412.00 : 726,560.89 = 129,453.39 : x
  2. Step 2: Convert to fraction form
    484,412.00/726,560.89 = 129,453.39/x
  3. Step 3: Cross multiply
    484,412.00x = 726,560.89 × 129,453.39
  4. Step 4: Simplify right side
    484,412.00x = 94,055,769,928.28
  5. Step 5: Solve for x
    x = 94,055,769,928.28/484,412.00
  6. Step 6: Final answer
    x = 194,164.82

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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.