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Finding the Fourth Proportional to 484,238.60, 726,098.70 and 203,438.60

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Solution

The fourth proportional to 484,238.60, 726,098.70 and 203,438.60 is: 305,049.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,238.60 : 726,098.70 = 203,438.60 : x
  2. Step 2: Convert to fraction form
    484,238.60/726,098.70 = 203,438.60/x
  3. Step 3: Cross multiply
    484,238.60x = 726,098.70 × 203,438.60
  4. Step 4: Simplify right side
    484,238.60x = 147,716,502,989.82
  5. Step 5: Solve for x
    x = 147,716,502,989.82/484,238.60
  6. Step 6: Final answer
    x = 305,049.00

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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.