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Finding the Fourth Proportional to 398,583.80, 597,773.64 and 118,035.44

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Solution

The fourth proportional to 398,583.80, 597,773.64 and 118,035.44 is: 177,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,583.80 : 597,773.64 = 118,035.44 : x
  2. Step 2: Convert to fraction form
    398,583.80/597,773.64 = 118,035.44/x
  3. Step 3: Cross multiply
    398,583.80x = 597,773.64 × 118,035.44
  4. Step 4: Simplify right side
    398,583.80x = 70,558,474,617.80
  5. Step 5: Solve for x
    x = 70,558,474,617.80/398,583.80
  6. Step 6: Final answer
    x = 177,022.94

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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.