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Finding the Fourth Proportional to 666,783.52, 999,164.97 and 441,336.28

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Solution

The fourth proportional to 666,783.52, 999,164.97 and 441,336.28 is: 661,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,783.52 : 999,164.97 = 441,336.28 : x
  2. Step 2: Convert to fraction form
    666,783.52/999,164.97 = 441,336.28/x
  3. Step 3: Cross multiply
    666,783.52x = 999,164.97 × 441,336.28
  4. Step 4: Simplify right side
    666,783.52x = 440,967,748,468.20
  5. Step 5: Solve for x
    x = 440,967,748,468.20/666,783.52
  6. Step 6: Final answer
    x = 661,335.71

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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.