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Finding the Fourth Proportional to 366,911.90, 550,367.85 and 352,915.10

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Solution

The fourth proportional to 366,911.90, 550,367.85 and 352,915.10 is: 529,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,911.90 : 550,367.85 = 352,915.10 : x
  2. Step 2: Convert to fraction form
    366,911.90/550,367.85 = 352,915.10/x
  3. Step 3: Cross multiply
    366,911.90x = 550,367.85 × 352,915.10
  4. Step 4: Simplify right side
    366,911.90x = 194,233,124,819.54
  5. Step 5: Solve for x
    x = 194,233,124,819.54/366,911.90
  6. Step 6: Final answer
    x = 529,372.65

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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.