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Finding the Fourth Proportional to 617,042.70, 925,450.53 and 280,002.30

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Solution

The fourth proportional to 617,042.70, 925,450.53 and 280,002.30 is: 419,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,042.70 : 925,450.53 = 280,002.30 : x
  2. Step 2: Convert to fraction form
    617,042.70/925,450.53 = 280,002.30/x
  3. Step 3: Cross multiply
    617,042.70x = 925,450.53 × 280,002.30
  4. Step 4: Simplify right side
    617,042.70x = 259,128,276,936.22
  5. Step 5: Solve for x
    x = 259,128,276,936.22/617,042.70
  6. Step 6: Final answer
    x = 419,951.94

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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.