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Finding the Fourth Proportional to 488,687.60, 733,031.40 and 173,176.40

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Solution

The fourth proportional to 488,687.60, 733,031.40 and 173,176.40 is: 259,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,687.60 : 733,031.40 = 173,176.40 : x
  2. Step 2: Convert to fraction form
    488,687.60/733,031.40 = 173,176.40/x
  3. Step 3: Cross multiply
    488,687.60x = 733,031.40 × 173,176.40
  4. Step 4: Simplify right side
    488,687.60x = 126,943,738,938.96
  5. Step 5: Solve for x
    x = 126,943,738,938.96/488,687.60
  6. Step 6: Final answer
    x = 259,764.60

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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.