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Finding the Fourth Proportional to 545,604.84, 752,958.05 and 303,887.48

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Solution

The fourth proportional to 545,604.84, 752,958.05 and 303,887.48 is: 419,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,604.84 : 752,958.05 = 303,887.48 : x
  2. Step 2: Convert to fraction form
    545,604.84/752,958.05 = 303,887.48/x
  3. Step 3: Cross multiply
    545,604.84x = 752,958.05 × 303,887.48
  4. Step 4: Simplify right side
    545,604.84x = 228,814,519,075.99
  5. Step 5: Solve for x
    x = 228,814,519,075.99/545,604.84
  6. Step 6: Final answer
    x = 419,377.73

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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.