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Finding the Fourth Proportional to 275,866.88, 411,386.22 and 273,344.49

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Solution

The fourth proportional to 275,866.88, 411,386.22 and 273,344.49 is: 407,624.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,866.88 : 411,386.22 = 273,344.49 : x
  2. Step 2: Convert to fraction form
    275,866.88/411,386.22 = 273,344.49/x
  3. Step 3: Cross multiply
    275,866.88x = 411,386.22 × 273,344.49
  4. Step 4: Simplify right side
    275,866.88x = 112,450,156,498.93
  5. Step 5: Solve for x
    x = 112,450,156,498.93/275,866.88
  6. Step 6: Final answer
    x = 407,624.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.