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Finding the Fourth Proportional to 484,336.39, 726,531.92 and 147,388.03

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Solution

The fourth proportional to 484,336.39, 726,531.92 and 147,388.03 is: 221,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,336.39 : 726,531.92 = 147,388.03 : x
  2. Step 2: Convert to fraction form
    484,336.39/726,531.92 = 147,388.03/x
  3. Step 3: Cross multiply
    484,336.39x = 726,531.92 × 147,388.03
  4. Step 4: Simplify right side
    484,336.39x = 107,082,108,420.92
  5. Step 5: Solve for x
    x = 107,082,108,420.92/484,336.39
  6. Step 6: Final answer
    x = 221,090.36

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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.