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Finding the Fourth Proportional to 428,506.62, 591,367.59 and 237,528.06

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Solution

The fourth proportional to 428,506.62, 591,367.59 and 237,528.06 is: 327,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,506.62 : 591,367.59 = 237,528.06 : x
  2. Step 2: Convert to fraction form
    428,506.62/591,367.59 = 237,528.06/x
  3. Step 3: Cross multiply
    428,506.62x = 591,367.59 × 237,528.06
  4. Step 4: Simplify right side
    428,506.62x = 140,466,396,399.58
  5. Step 5: Solve for x
    x = 140,466,396,399.58/428,506.62
  6. Step 6: Final answer
    x = 327,804.50

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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.