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Finding the Fourth Proportional to 548,983.82, 757,424.97 and 307,227.98

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Solution

The fourth proportional to 548,983.82, 757,424.97 and 307,227.98 is: 423,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,983.82 : 757,424.97 = 307,227.98 : x
  2. Step 2: Convert to fraction form
    548,983.82/757,424.97 = 307,227.98/x
  3. Step 3: Cross multiply
    548,983.82x = 757,424.97 × 307,227.98
  4. Step 4: Simplify right side
    548,983.82x = 232,702,139,747.54
  5. Step 5: Solve for x
    x = 232,702,139,747.54/548,983.82
  6. Step 6: Final answer
    x = 423,877.96

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1.5x scale

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.