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Finding the Fourth Proportional to 323,832.20, 485,748.30 and 284,466.20

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Solution

The fourth proportional to 323,832.20, 485,748.30 and 284,466.20 is: 426,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,832.20 : 485,748.30 = 284,466.20 : x
  2. Step 2: Convert to fraction form
    323,832.20/485,748.30 = 284,466.20/x
  3. Step 3: Cross multiply
    323,832.20x = 485,748.30 × 284,466.20
  4. Step 4: Simplify right side
    323,832.20x = 138,178,973,057.46
  5. Step 5: Solve for x
    x = 138,178,973,057.46/323,832.20
  6. Step 6: Final answer
    x = 426,699.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.