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Finding the Fourth Proportional to 362,493.40, 542,664.90 and 269,411.80

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Solution

The fourth proportional to 362,493.40, 542,664.90 and 269,411.80 is: 403,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,493.40 : 542,664.90 = 269,411.80 : x
  2. Step 2: Convert to fraction form
    362,493.40/542,664.90 = 269,411.80/x
  3. Step 3: Cross multiply
    362,493.40x = 542,664.90 × 269,411.80
  4. Step 4: Simplify right side
    362,493.40x = 146,200,327,505.82
  5. Step 5: Solve for x
    x = 146,200,327,505.82/362,493.40
  6. Step 6: Final answer
    x = 403,318.59

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1.5x scale

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.