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Finding the Fourth Proportional to 435,190.08, 652,986 and 198,605.28

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Solution

The fourth proportional to 435,190.08, 652,986 and 198,605.28 is: 297,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,190.08 : 652,986 = 198,605.28 : x
  2. Step 2: Convert to fraction form
    435,190.08/652,986 = 198,605.28/x
  3. Step 3: Cross multiply
    435,190.08x = 652,986 × 198,605.28
  4. Step 4: Simplify right side
    435,190.08x = 129,686,467,366.08
  5. Step 5: Solve for x
    x = 129,686,467,366.08/435,190.08
  6. Step 6: Final answer
    x = 297,999.59

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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.