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Finding the Fourth Proportional to 737,469.45, 1,017,470.21 and 447,197.45

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Solution

The fourth proportional to 737,469.45, 1,017,470.21 and 447,197.45 is: 616,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,469.45 : 1,017,470.21 = 447,197.45 : x
  2. Step 2: Convert to fraction form
    737,469.45/1,017,470.21 = 447,197.45/x
  3. Step 3: Cross multiply
    737,469.45x = 1,017,470.21 × 447,197.45
  4. Step 4: Simplify right side
    737,469.45x = 455,010,076,039.63
  5. Step 5: Solve for x
    x = 455,010,076,039.63/737,469.45
  6. Step 6: Final answer
    x = 616,988.37

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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.