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Finding the Fourth Proportional to 548,996.37, 757,631.02 and 307,272.72

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Solution

The fourth proportional to 548,996.37, 757,631.02 and 307,272.72 is: 424,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,996.37 : 757,631.02 = 307,272.72 : x
  2. Step 2: Convert to fraction form
    548,996.37/757,631.02 = 307,272.72/x
  3. Step 3: Cross multiply
    548,996.37x = 757,631.02 × 307,272.72
  4. Step 4: Simplify right side
    548,996.37x = 232,799,346,920.85
  5. Step 5: Solve for x
    x = 232,799,346,920.85/548,996.37
  6. Step 6: Final answer
    x = 424,045.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.