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Finding the Fourth Proportional to 545,732.88, 753,133.98 and 304,015.32

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Solution

The fourth proportional to 545,732.88, 753,133.98 and 304,015.32 is: 419,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,732.88 : 753,133.98 = 304,015.32 : x
  2. Step 2: Convert to fraction form
    545,732.88/753,133.98 = 304,015.32/x
  3. Step 3: Cross multiply
    545,732.88x = 753,133.98 × 304,015.32
  4. Step 4: Simplify right side
    545,732.88x = 228,964,267,932.57
  5. Step 5: Solve for x
    x = 228,964,267,932.57/545,732.88
  6. Step 6: Final answer
    x = 419,553.73

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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.