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Finding the Fourth Proportional to 428,078.93, 590,748.80 and 237,093.08

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Solution

The fourth proportional to 428,078.93, 590,748.80 and 237,093.08 is: 327,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,078.93 : 590,748.80 = 237,093.08 : x
  2. Step 2: Convert to fraction form
    428,078.93/590,748.80 = 237,093.08/x
  3. Step 3: Cross multiply
    428,078.93x = 590,748.80 × 237,093.08
  4. Step 4: Simplify right side
    428,078.93x = 140,062,448,359.10
  5. Step 5: Solve for x
    x = 140,062,448,359.10/428,078.93
  6. Step 6: Final answer
    x = 327,188.38

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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.