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Finding the Fourth Proportional to 296,892.80, 445,339.20 and 178,503.20

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Solution

The fourth proportional to 296,892.80, 445,339.20 and 178,503.20 is: 267,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,892.80 : 445,339.20 = 178,503.20 : x
  2. Step 2: Convert to fraction form
    296,892.80/445,339.20 = 178,503.20/x
  3. Step 3: Cross multiply
    296,892.80x = 445,339.20 × 178,503.20
  4. Step 4: Simplify right side
    296,892.80x = 79,494,472,285.44
  5. Step 5: Solve for x
    x = 79,494,472,285.44/296,892.80
  6. Step 6: Final answer
    x = 267,754.80

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1.5x scale

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.