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Finding the Fourth Proportional to 545,589.82, 752,914.20 and 303,918.76

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Solution

The fourth proportional to 545,589.82, 752,914.20 and 303,918.76 is: 419,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,589.82 : 752,914.20 = 303,918.76 : x
  2. Step 2: Convert to fraction form
    545,589.82/752,914.20 = 303,918.76/x
  3. Step 3: Cross multiply
    545,589.82x = 752,914.20 × 303,918.76
  4. Step 4: Simplify right side
    545,589.82x = 228,824,750,050.39
  5. Step 5: Solve for x
    x = 228,824,750,050.39/545,589.82
  6. Step 6: Final answer
    x = 419,408.03

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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.