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Finding the Fourth Proportional to 458,757.57, 687,980.54 and 174,379.69

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Solution

The fourth proportional to 458,757.57, 687,980.54 and 174,379.69 is: 261,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,757.57 : 687,980.54 = 174,379.69 : x
  2. Step 2: Convert to fraction form
    458,757.57/687,980.54 = 174,379.69/x
  3. Step 3: Cross multiply
    458,757.57x = 687,980.54 × 174,379.69
  4. Step 4: Simplify right side
    458,757.57x = 119,969,829,736.38
  5. Step 5: Solve for x
    x = 119,969,829,736.38/458,757.57
  6. Step 6: Final answer
    x = 261,510.30

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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.