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Finding the Fourth Proportional to 425,433.94, 587,091.22 and 231,843.34

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Solution

The fourth proportional to 425,433.94, 587,091.22 and 231,843.34 is: 319,939.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,433.94 : 587,091.22 = 231,843.34 : x
  2. Step 2: Convert to fraction form
    425,433.94/587,091.22 = 231,843.34/x
  3. Step 3: Cross multiply
    425,433.94x = 587,091.22 × 231,843.34
  4. Step 4: Simplify right side
    425,433.94x = 136,113,189,329.48
  5. Step 5: Solve for x
    x = 136,113,189,329.48/425,433.94
  6. Step 6: Final answer
    x = 319,939.66

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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.