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Finding the Fourth Proportional to 554,852.64, 765,691.20 and 300,198.24

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Solution

The fourth proportional to 554,852.64, 765,691.20 and 300,198.24 is: 414,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,852.64 : 765,691.20 = 300,198.24 : x
  2. Step 2: Convert to fraction form
    554,852.64/765,691.20 = 300,198.24/x
  3. Step 3: Cross multiply
    554,852.64x = 765,691.20 × 300,198.24
  4. Step 4: Simplify right side
    554,852.64x = 229,859,150,623.49
  5. Step 5: Solve for x
    x = 229,859,150,623.49/554,852.64
  6. Step 6: Final answer
    x = 414,270.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.