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Finding the Fourth Proportional to 693,338, 1,040,007 and 168,026

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Solution

The fourth proportional to 693,338, 1,040,007 and 168,026 is: 252,039

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,338 : 1,040,007 = 168,026 : x
  2. Step 2: Convert to fraction form
    693,338/1,040,007 = 168,026/x
  3. Step 3: Cross multiply
    693,338x = 1,040,007 × 168,026
  4. Step 4: Simplify right side
    693,338x = 174,748,216,182
  5. Step 5: Solve for x
    x = 174,748,216,182/693,338
  6. Step 6: Final answer
    x = 252,039

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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.