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Finding the Fourth Proportional to 689,201.64, 1,033,802.82 and 262,638

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Solution

The fourth proportional to 689,201.64, 1,033,802.82 and 262,638 is: 393,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,201.64 : 1,033,802.82 = 262,638 : x
  2. Step 2: Convert to fraction form
    689,201.64/1,033,802.82 = 262,638/x
  3. Step 3: Cross multiply
    689,201.64x = 1,033,802.82 × 262,638
  4. Step 4: Simplify right side
    689,201.64x = 271,515,905,039.16
  5. Step 5: Solve for x
    x = 271,515,905,039.16/689,201.64
  6. Step 6: Final answer
    x = 393,957.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.