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Finding the Fourth Proportional to 444,806.20, 666,302.10 and 275,807.80

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Solution

The fourth proportional to 444,806.20, 666,302.10 and 275,807.80 is: 413,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,806.20 : 666,302.10 = 275,807.80 : x
  2. Step 2: Convert to fraction form
    444,806.20/666,302.10 = 275,807.80/x
  3. Step 3: Cross multiply
    444,806.20x = 666,302.10 × 275,807.80
  4. Step 4: Simplify right side
    444,806.20x = 183,771,316,336.38
  5. Step 5: Solve for x
    x = 183,771,316,336.38/444,806.20
  6. Step 6: Final answer
    x = 413,149.18

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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.