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Finding the Fourth Proportional to 316,874.90, 475,312.35 and 295,879.70

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Solution

The fourth proportional to 316,874.90, 475,312.35 and 295,879.70 is: 443,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,874.90 : 475,312.35 = 295,879.70 : x
  2. Step 2: Convert to fraction form
    316,874.90/475,312.35 = 295,879.70/x
  3. Step 3: Cross multiply
    316,874.90x = 475,312.35 × 295,879.70
  4. Step 4: Simplify right side
    316,874.90x = 140,635,275,524.30
  5. Step 5: Solve for x
    x = 140,635,275,524.30/316,874.90
  6. Step 6: Final answer
    x = 443,819.55

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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.