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Finding the Fourth Proportional to 543,193.75, 749,607.38 and 304,729.75

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Solution

The fourth proportional to 543,193.75, 749,607.38 and 304,729.75 is: 420,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,193.75 : 749,607.38 = 304,729.75 : x
  2. Step 2: Convert to fraction form
    543,193.75/749,607.38 = 304,729.75/x
  3. Step 3: Cross multiply
    543,193.75x = 749,607.38 × 304,729.75
  4. Step 4: Simplify right side
    543,193.75x = 228,427,669,505.56
  5. Step 5: Solve for x
    x = 228,427,669,505.56/543,193.75
  6. Step 6: Final answer
    x = 420,527.06

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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.