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Finding the Fourth Proportional to 488,830.80, 733,829.40 and 275,768.40

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Solution

The fourth proportional to 488,830.80, 733,829.40 and 275,768.40 is: 413,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,830.80 : 733,829.40 = 275,768.40 : x
  2. Step 2: Convert to fraction form
    488,830.80/733,829.40 = 275,768.40/x
  3. Step 3: Cross multiply
    488,830.80x = 733,829.40 × 275,768.40
  4. Step 4: Simplify right side
    488,830.80x = 202,366,959,510.96
  5. Step 5: Solve for x
    x = 202,366,959,510.96/488,830.80
  6. Step 6: Final answer
    x = 413,981.61

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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.