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Finding the Fourth Proportional to 428,339.93, 591,076.59 and 237,349.22

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Solution

The fourth proportional to 428,339.93, 591,076.59 and 237,349.22 is: 327,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,339.93 : 591,076.59 = 237,349.22 : x
  2. Step 2: Convert to fraction form
    428,339.93/591,076.59 = 237,349.22/x
  3. Step 3: Cross multiply
    428,339.93x = 591,076.59 × 237,349.22
  4. Step 4: Simplify right side
    428,339.93x = 140,291,567,596.76
  5. Step 5: Solve for x
    x = 140,291,567,596.76/428,339.93
  6. Step 6: Final answer
    x = 327,523.91

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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.