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Finding the Fourth Proportional to 685,650.78, 945,884.04 and 444,011.16

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Solution

The fourth proportional to 685,650.78, 945,884.04 and 444,011.16 is: 612,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,650.78 : 945,884.04 = 444,011.16 : x
  2. Step 2: Convert to fraction form
    685,650.78/945,884.04 = 444,011.16/x
  3. Step 3: Cross multiply
    685,650.78x = 945,884.04 × 444,011.16
  4. Step 4: Simplify right side
    685,650.78x = 419,983,069,825.89
  5. Step 5: Solve for x
    x = 419,983,069,825.89/685,650.78
  6. Step 6: Final answer
    x = 612,532.04

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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.