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Finding the Fourth Proportional to 428,257.26, 590,970.33 and 237,259.26

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Solution

The fourth proportional to 428,257.26, 590,970.33 and 237,259.26 is: 327,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,257.26 : 590,970.33 = 237,259.26 : x
  2. Step 2: Convert to fraction form
    428,257.26/590,970.33 = 237,259.26/x
  3. Step 3: Cross multiply
    428,257.26x = 590,970.33 × 237,259.26
  4. Step 4: Simplify right side
    428,257.26x = 140,213,183,177.76
  5. Step 5: Solve for x
    x = 140,213,183,177.76/428,257.26
  6. Step 6: Final answer
    x = 327,404.10

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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.