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Finding the Fourth Proportional to 652,343.12, 978,661.92 and 231,619.04

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Solution

The fourth proportional to 652,343.12, 978,661.92 and 231,619.04 is: 347,480.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,343.12 : 978,661.92 = 231,619.04 : x
  2. Step 2: Convert to fraction form
    652,343.12/978,661.92 = 231,619.04/x
  3. Step 3: Cross multiply
    652,343.12x = 978,661.92 × 231,619.04
  4. Step 4: Simplify right side
    652,343.12x = 226,676,734,394.96
  5. Step 5: Solve for x
    x = 226,676,734,394.96/652,343.12
  6. Step 6: Final answer
    x = 347,480.84

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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.