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Finding the Fourth Proportional to 443,209.60, 664,617.44 and 127,592.64

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Solution

The fourth proportional to 443,209.60, 664,617.44 and 127,592.64 is: 191,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,209.60 : 664,617.44 = 127,592.64 : x
  2. Step 2: Convert to fraction form
    443,209.60/664,617.44 = 127,592.64/x
  3. Step 3: Cross multiply
    443,209.60x = 664,617.44 × 127,592.64
  4. Step 4: Simplify right side
    443,209.60x = 84,800,293,759.64
  5. Step 5: Solve for x
    x = 84,800,293,759.64/443,209.60
  6. Step 6: Final answer
    x = 191,332.26

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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.