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Finding the Fourth Proportional to 435,696.36, 653,655.41 and 255,933.80

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Solution

The fourth proportional to 435,696.36, 653,655.41 and 255,933.80 is: 383,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,696.36 : 653,655.41 = 255,933.80 : x
  2. Step 2: Convert to fraction form
    435,696.36/653,655.41 = 255,933.80/x
  3. Step 3: Cross multiply
    435,696.36x = 653,655.41 × 255,933.80
  4. Step 4: Simplify right side
    435,696.36x = 167,292,512,971.86
  5. Step 5: Solve for x
    x = 167,292,512,971.86/435,696.36
  6. Step 6: Final answer
    x = 383,965.83

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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.