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Finding the Fourth Proportional to 655,524.15, 904,640.20 and 369,054.47

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Solution

The fourth proportional to 655,524.15, 904,640.20 and 369,054.47 is: 509,304.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,524.15 : 904,640.20 = 369,054.47 : x
  2. Step 2: Convert to fraction form
    655,524.15/904,640.20 = 369,054.47/x
  3. Step 3: Cross multiply
    655,524.15x = 904,640.20 × 369,054.47
  4. Step 4: Simplify right side
    655,524.15x = 333,861,505,028.49
  5. Step 5: Solve for x
    x = 333,861,505,028.49/655,524.15
  6. Step 6: Final answer
    x = 509,304.66

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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.