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Finding the Fourth Proportional to 435,480.40, 653,052.62 and 169,205.84

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Solution

The fourth proportional to 435,480.40, 653,052.62 and 169,205.84 is: 253,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,480.40 : 653,052.62 = 169,205.84 : x
  2. Step 2: Convert to fraction form
    435,480.40/653,052.62 = 169,205.84/x
  3. Step 3: Cross multiply
    435,480.40x = 653,052.62 × 169,205.84
  4. Step 4: Simplify right side
    435,480.40x = 110,500,317,131.30
  5. Step 5: Solve for x
    x = 110,500,317,131.30/435,480.40
  6. Step 6: Final answer
    x = 253,743.49

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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.