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Finding the Fourth Proportional to 489,082.80, 733,624.20 and 317,840.70

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Solution

The fourth proportional to 489,082.80, 733,624.20 and 317,840.70 is: 476,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,082.80 : 733,624.20 = 317,840.70 : x
  2. Step 2: Convert to fraction form
    489,082.80/733,624.20 = 317,840.70/x
  3. Step 3: Cross multiply
    489,082.80x = 733,624.20 × 317,840.70
  4. Step 4: Simplify right side
    489,082.80x = 233,175,629,264.94
  5. Step 5: Solve for x
    x = 233,175,629,264.94/489,082.80
  6. Step 6: Final answer
    x = 476,761.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.