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Finding the Fourth Proportional to 310,558.46, 428,783.14 and 237,833.04

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Solution

The fourth proportional to 310,558.46, 428,783.14 and 237,833.04 is: 328,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,558.46 : 428,783.14 = 237,833.04 : x
  2. Step 2: Convert to fraction form
    310,558.46/428,783.14 = 237,833.04/x
  3. Step 3: Cross multiply
    310,558.46x = 428,783.14 × 237,833.04
  4. Step 4: Simplify right side
    310,558.46x = 101,978,797,686.95
  5. Step 5: Solve for x
    x = 101,978,797,686.95/310,558.46
  6. Step 6: Final answer
    x = 328,372.31

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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.