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Finding the Fourth Proportional to 652,504.46, 978,440.26 and 382,720.75

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Solution

The fourth proportional to 652,504.46, 978,440.26 and 382,720.75 is: 573,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,504.46 : 978,440.26 = 382,720.75 : x
  2. Step 2: Convert to fraction form
    652,504.46/978,440.26 = 382,720.75/x
  3. Step 3: Cross multiply
    652,504.46x = 978,440.26 × 382,720.75
  4. Step 4: Simplify right side
    652,504.46x = 374,469,390,137.40
  5. Step 5: Solve for x
    x = 374,469,390,137.40/652,504.46
  6. Step 6: Final answer
    x = 573,895.53

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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.