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Finding the Fourth Proportional to 425,449.10, 587,111.92 and 231,858.37

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Solution

The fourth proportional to 425,449.10, 587,111.92 and 231,858.37 is: 319,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,449.10 : 587,111.92 = 231,858.37 : x
  2. Step 2: Convert to fraction form
    425,449.10/587,111.92 = 231,858.37/x
  3. Step 3: Cross multiply
    425,449.10x = 587,111.92 × 231,858.37
  4. Step 4: Simplify right side
    425,449.10x = 136,126,812,778.77
  5. Step 5: Solve for x
    x = 136,126,812,778.77/425,449.10
  6. Step 6: Final answer
    x = 319,960.28

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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.