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Finding the Fourth Proportional to 425,682.06, 587,430 and 234,690.54

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Solution

The fourth proportional to 425,682.06, 587,430 and 234,690.54 is: 323,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,682.06 : 587,430 = 234,690.54 : x
  2. Step 2: Convert to fraction form
    425,682.06/587,430 = 234,690.54/x
  3. Step 3: Cross multiply
    425,682.06x = 587,430 × 234,690.54
  4. Step 4: Simplify right side
    425,682.06x = 137,864,263,912.20
  5. Step 5: Solve for x
    x = 137,864,263,912.20/425,682.06
  6. Step 6: Final answer
    x = 323,866.75

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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.