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Finding the Fourth Proportional to 425,662.48, 587,418.30 and 234,682.72

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Solution

The fourth proportional to 425,662.48, 587,418.30 and 234,682.72 is: 323,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,662.48 : 587,418.30 = 234,682.72 : x
  2. Step 2: Convert to fraction form
    425,662.48/587,418.30 = 234,682.72/x
  3. Step 3: Cross multiply
    425,662.48x = 587,418.30 × 234,682.72
  4. Step 4: Simplify right side
    425,662.48x = 137,856,924,421.78
  5. Step 5: Solve for x
    x = 137,856,924,421.78/425,662.48
  6. Step 6: Final answer
    x = 323,864.40

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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.