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Finding the Fourth Proportional to 469,372.46, 647,706.88 and 275,750.06

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Solution

The fourth proportional to 469,372.46, 647,706.88 and 275,750.06 is: 380,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,372.46 : 647,706.88 = 275,750.06 : x
  2. Step 2: Convert to fraction form
    469,372.46/647,706.88 = 275,750.06/x
  3. Step 3: Cross multiply
    469,372.46x = 647,706.88 × 275,750.06
  4. Step 4: Simplify right side
    469,372.46x = 178,605,208,128.57
  5. Step 5: Solve for x
    x = 178,605,208,128.57/469,372.46
  6. Step 6: Final answer
    x = 380,519.15

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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.