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Finding the Fourth Proportional to 548,732.88, 757,280.70 and 307,000.98

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Solution

The fourth proportional to 548,732.88, 757,280.70 and 307,000.98 is: 423,677.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,732.88 : 757,280.70 = 307,000.98 : x
  2. Step 2: Convert to fraction form
    548,732.88/757,280.70 = 307,000.98/x
  3. Step 3: Cross multiply
    548,732.88x = 757,280.70 × 307,000.98
  4. Step 4: Simplify right side
    548,732.88x = 232,485,917,035.09
  5. Step 5: Solve for x
    x = 232,485,917,035.09/548,732.88
  6. Step 6: Final answer
    x = 423,677.76

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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.