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Finding the Fourth Proportional to 408,082.90, 612,124.35 and 366,748.60

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Solution

The fourth proportional to 408,082.90, 612,124.35 and 366,748.60 is: 550,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,082.90 : 612,124.35 = 366,748.60 : x
  2. Step 2: Convert to fraction form
    408,082.90/612,124.35 = 366,748.60/x
  3. Step 3: Cross multiply
    408,082.90x = 612,124.35 × 366,748.60
  4. Step 4: Simplify right side
    408,082.90x = 224,495,748,388.41
  5. Step 5: Solve for x
    x = 224,495,748,388.41/408,082.90
  6. Step 6: Final answer
    x = 550,122.90

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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.