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Finding the Fourth Proportional to 431,532.51, 595,573.16 and 261,739.23

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Solution

The fourth proportional to 431,532.51, 595,573.16 and 261,739.23 is: 361,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,532.51 : 595,573.16 = 261,739.23 : x
  2. Step 2: Convert to fraction form
    431,532.51/595,573.16 = 261,739.23/x
  3. Step 3: Cross multiply
    431,532.51x = 595,573.16 × 261,739.23
  4. Step 4: Simplify right side
    431,532.51x = 155,884,858,998.37
  5. Step 5: Solve for x
    x = 155,884,858,998.37/431,532.51
  6. Step 6: Final answer
    x = 361,235.49

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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.