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Finding the Fourth Proportional to 312,914.97, 431,804.59 and 183,833.37

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Solution

The fourth proportional to 312,914.97, 431,804.59 and 183,833.37 is: 253,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,914.97 : 431,804.59 = 183,833.37 : x
  2. Step 2: Convert to fraction form
    312,914.97/431,804.59 = 183,833.37/x
  3. Step 3: Cross multiply
    312,914.97x = 431,804.59 × 183,833.37
  4. Step 4: Simplify right side
    312,914.97x = 79,380,092,501.58
  5. Step 5: Solve for x
    x = 79,380,092,501.58/312,914.97
  6. Step 6: Final answer
    x = 253,679.43

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1.5x scale

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.