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Finding the Fourth Proportional to 428,846.88, 591,614.64 and 267,741.66

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Solution

The fourth proportional to 428,846.88, 591,614.64 and 267,741.66 is: 369,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,846.88 : 591,614.64 = 267,741.66 : x
  2. Step 2: Convert to fraction form
    428,846.88/591,614.64 = 267,741.66/x
  3. Step 3: Cross multiply
    428,846.88x = 591,614.64 × 267,741.66
  4. Step 4: Simplify right side
    428,846.88x = 158,399,885,793.90
  5. Step 5: Solve for x
    x = 158,399,885,793.90/428,846.88
  6. Step 6: Final answer
    x = 369,362.34

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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.