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Finding the Fourth Proportional to 362,507.40, 542,685.90 and 269,425.80

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Solution

The fourth proportional to 362,507.40, 542,685.90 and 269,425.80 is: 403,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,507.40 : 542,685.90 = 269,425.80 : x
  2. Step 2: Convert to fraction form
    362,507.40/542,685.90 = 269,425.80/x
  3. Step 3: Cross multiply
    362,507.40x = 542,685.90 × 269,425.80
  4. Step 4: Simplify right side
    362,507.40x = 146,213,582,756.22
  5. Step 5: Solve for x
    x = 146,213,582,756.22/362,507.40
  6. Step 6: Final answer
    x = 403,339.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.