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Finding the Fourth Proportional to 398,581.80, 597,770.64 and 118,033.44

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Solution

The fourth proportional to 398,581.80, 597,770.64 and 118,033.44 is: 177,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,581.80 : 597,770.64 = 118,033.44 : x
  2. Step 2: Convert to fraction form
    398,581.80/597,770.64 = 118,033.44/x
  3. Step 3: Cross multiply
    398,581.80x = 597,770.64 × 118,033.44
  4. Step 4: Simplify right side
    398,581.80x = 70,556,924,970.20
  5. Step 5: Solve for x
    x = 70,556,924,970.20/398,581.80
  6. Step 6: Final answer
    x = 177,019.94

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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.