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Finding the Fourth Proportional to 484,805.80, 727,208.70 and 308,096.20

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Solution

The fourth proportional to 484,805.80, 727,208.70 and 308,096.20 is: 462,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,805.80 : 727,208.70 = 308,096.20 : x
  2. Step 2: Convert to fraction form
    484,805.80/727,208.70 = 308,096.20/x
  3. Step 3: Cross multiply
    484,805.80x = 727,208.70 × 308,096.20
  4. Step 4: Simplify right side
    484,805.80x = 224,050,237,076.94
  5. Step 5: Solve for x
    x = 224,050,237,076.94/484,805.80
  6. Step 6: Final answer
    x = 462,144.30

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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.