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Finding the Fourth Proportional to 416,658.43, 574,985.96 and 235,429.03

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Solution

The fourth proportional to 416,658.43, 574,985.96 and 235,429.03 is: 324,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,658.43 : 574,985.96 = 235,429.03 : x
  2. Step 2: Convert to fraction form
    416,658.43/574,985.96 = 235,429.03/x
  3. Step 3: Cross multiply
    416,658.43x = 574,985.96 × 235,429.03
  4. Step 4: Simplify right side
    416,658.43x = 135,368,385,649.27
  5. Step 5: Solve for x
    x = 135,368,385,649.27/416,658.43
  6. Step 6: Final answer
    x = 324,890.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.