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Finding the Fourth Proportional to 484,228.20, 726,123.60 and 217,851.60

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Solution

The fourth proportional to 484,228.20, 726,123.60 and 217,851.60 is: 326,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,228.20 : 726,123.60 = 217,851.60 : x
  2. Step 2: Convert to fraction form
    484,228.20/726,123.60 = 217,851.60/x
  3. Step 3: Cross multiply
    484,228.20x = 726,123.60 × 217,851.60
  4. Step 4: Simplify right side
    484,228.20x = 158,187,188,057.76
  5. Step 5: Solve for x
    x = 158,187,188,057.76/484,228.20
  6. Step 6: Final answer
    x = 326,679.01

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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.