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Finding the Fourth Proportional to 469,912.26, 648,477.28 and 255,052.33

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Solution

The fourth proportional to 469,912.26, 648,477.28 and 255,052.33 is: 351,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,912.26 : 648,477.28 = 255,052.33 : x
  2. Step 2: Convert to fraction form
    469,912.26/648,477.28 = 255,052.33/x
  3. Step 3: Cross multiply
    469,912.26x = 648,477.28 × 255,052.33
  4. Step 4: Simplify right side
    469,912.26x = 165,395,639,913.69
  5. Step 5: Solve for x
    x = 165,395,639,913.69/469,912.26
  6. Step 6: Final answer
    x = 351,971.32

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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.