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Finding the Fourth Proportional to 622,881.04, 858,680.04 and 443,722

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Solution

The fourth proportional to 622,881.04, 858,680.04 and 443,722 is: 611,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,881.04 : 858,680.04 = 443,722 : x
  2. Step 2: Convert to fraction form
    622,881.04/858,680.04 = 443,722/x
  3. Step 3: Cross multiply
    622,881.04x = 858,680.04 × 443,722
  4. Step 4: Simplify right side
    622,881.04x = 381,015,224,708.88
  5. Step 5: Solve for x
    x = 381,015,224,708.88/622,881.04
  6. Step 6: Final answer
    x = 611,698.22

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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.