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Finding the Fourth Proportional to 273,265.80, 409,898.70 and 255,640.20

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Solution

The fourth proportional to 273,265.80, 409,898.70 and 255,640.20 is: 383,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,265.80 : 409,898.70 = 255,640.20 : x
  2. Step 2: Convert to fraction form
    273,265.80/409,898.70 = 255,640.20/x
  3. Step 3: Cross multiply
    273,265.80x = 409,898.70 × 255,640.20
  4. Step 4: Simplify right side
    273,265.80x = 104,786,585,647.74
  5. Step 5: Solve for x
    x = 104,786,585,647.74/273,265.80
  6. Step 6: Final answer
    x = 383,460.30

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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.