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Finding the Fourth Proportional to 484,782.30, 727,505.60 and 169,239.20

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Solution

The fourth proportional to 484,782.30, 727,505.60 and 169,239.20 is: 253,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,782.30 : 727,505.60 = 169,239.20 : x
  2. Step 2: Convert to fraction form
    484,782.30/727,505.60 = 169,239.20/x
  3. Step 3: Cross multiply
    484,782.30x = 727,505.60 × 169,239.20
  4. Step 4: Simplify right side
    484,782.30x = 123,122,461,255.80
  5. Step 5: Solve for x
    x = 123,122,461,255.80/484,782.30
  6. Step 6: Final answer
    x = 253,974.75

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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.