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Finding the Fourth Proportional to 655,609.46, 904,768.94 and 365,220.66

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Solution

The fourth proportional to 655,609.46, 904,768.94 and 365,220.66 is: 504,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,609.46 : 904,768.94 = 365,220.66 : x
  2. Step 2: Convert to fraction form
    655,609.46/904,768.94 = 365,220.66/x
  3. Step 3: Cross multiply
    655,609.46x = 904,768.94 × 365,220.66
  4. Step 4: Simplify right side
    655,609.46x = 330,440,309,414.30
  5. Step 5: Solve for x
    x = 330,440,309,414.30/655,609.46
  6. Step 6: Final answer
    x = 504,020.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.