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Finding the Fourth Proportional to 435,659.40, 653,489.10 and 404,166.60

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Solution

The fourth proportional to 435,659.40, 653,489.10 and 404,166.60 is: 606,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,659.40 : 653,489.10 = 404,166.60 : x
  2. Step 2: Convert to fraction form
    435,659.40/653,489.10 = 404,166.60/x
  3. Step 3: Cross multiply
    435,659.40x = 653,489.10 × 404,166.60
  4. Step 4: Simplify right side
    435,659.40x = 264,118,467,684.06
  5. Step 5: Solve for x
    x = 264,118,467,684.06/435,659.40
  6. Step 6: Final answer
    x = 606,249.90

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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.