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Finding the Fourth Proportional to 693,581, 1,040,371.50 and 168,269

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Solution

The fourth proportional to 693,581, 1,040,371.50 and 168,269 is: 252,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,581 : 1,040,371.50 = 168,269 : x
  2. Step 2: Convert to fraction form
    693,581/1,040,371.50 = 168,269/x
  3. Step 3: Cross multiply
    693,581x = 1,040,371.50 × 168,269
  4. Step 4: Simplify right side
    693,581x = 175,062,271,933.50
  5. Step 5: Solve for x
    x = 175,062,271,933.50/693,581
  6. Step 6: Final answer
    x = 252,403.50

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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.