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Finding the Fourth Proportional to 484,405.60, 726,349.20 and 203,605.60

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Solution

The fourth proportional to 484,405.60, 726,349.20 and 203,605.60 is: 305,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,405.60 : 726,349.20 = 203,605.60 : x
  2. Step 2: Convert to fraction form
    484,405.60/726,349.20 = 203,605.60/x
  3. Step 3: Cross multiply
    484,405.60x = 726,349.20 × 203,605.60
  4. Step 4: Simplify right side
    484,405.60x = 147,888,764,675.52
  5. Step 5: Solve for x
    x = 147,888,764,675.52/484,405.60
  6. Step 6: Final answer
    x = 305,299.45

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1.5x scale

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.