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Finding the Fourth Proportional to 548,246.70, 756,596.16 and 306,529.90

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Solution

The fourth proportional to 548,246.70, 756,596.16 and 306,529.90 is: 423,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,246.70 : 756,596.16 = 306,529.90 : x
  2. Step 2: Convert to fraction form
    548,246.70/756,596.16 = 306,529.90/x
  3. Step 3: Cross multiply
    548,246.70x = 756,596.16 × 306,529.90
  4. Step 4: Simplify right side
    548,246.70x = 231,919,345,265.18
  5. Step 5: Solve for x
    x = 231,919,345,265.18/548,246.70
  6. Step 6: Final answer
    x = 423,020.05

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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.