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Finding the Fourth Proportional to 665,967.80, 996,983.40 and 441,581.60

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Solution

The fourth proportional to 665,967.80, 996,983.40 and 441,581.60 is: 661,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,967.80 : 996,983.40 = 441,581.60 : x
  2. Step 2: Convert to fraction form
    665,967.80/996,983.40 = 441,581.60/x
  3. Step 3: Cross multiply
    665,967.80x = 996,983.40 × 441,581.60
  4. Step 4: Simplify right side
    665,967.80x = 440,249,524,945.44
  5. Step 5: Solve for x
    x = 440,249,524,945.44/665,967.80
  6. Step 6: Final answer
    x = 661,067.28

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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.