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Finding the Fourth Proportional to 503,391.75, 755,437.37 and 325,457.43

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Solution

The fourth proportional to 503,391.75, 755,437.37 and 325,457.43 is: 488,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,391.75 : 755,437.37 = 325,457.43 : x
  2. Step 2: Convert to fraction form
    503,391.75/755,437.37 = 325,457.43/x
  3. Step 3: Cross multiply
    503,391.75x = 755,437.37 × 325,457.43
  4. Step 4: Simplify right side
    503,391.75x = 245,862,703,338.87
  5. Step 5: Solve for x
    x = 245,862,703,338.87/503,391.75
  6. Step 6: Final answer
    x = 488,412.26

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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.