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Finding the Fourth Proportional to 485,034.80, 727,552.20 and 366,936.80

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Solution

The fourth proportional to 485,034.80, 727,552.20 and 366,936.80 is: 550,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,034.80 : 727,552.20 = 366,936.80 : x
  2. Step 2: Convert to fraction form
    485,034.80/727,552.20 = 366,936.80/x
  3. Step 3: Cross multiply
    485,034.80x = 727,552.20 × 366,936.80
  4. Step 4: Simplify right side
    485,034.80x = 266,965,676,100.96
  5. Step 5: Solve for x
    x = 266,965,676,100.96/485,034.80
  6. Step 6: Final answer
    x = 550,405.20

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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.