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Finding the Fourth Proportional to 435,993.40, 653,504.10 and 169,665.40

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Solution

The fourth proportional to 435,993.40, 653,504.10 and 169,665.40 is: 254,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,993.40 : 653,504.10 = 169,665.40 : x
  2. Step 2: Convert to fraction form
    435,993.40/653,504.10 = 169,665.40/x
  3. Step 3: Cross multiply
    435,993.40x = 653,504.10 × 169,665.40
  4. Step 4: Simplify right side
    435,993.40x = 110,877,034,528.14
  5. Step 5: Solve for x
    x = 110,877,034,528.14/435,993.40
  6. Step 6: Final answer
    x = 254,308.97

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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.