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Finding the Fourth Proportional to 379,717.92, 523,892.34 and 252,415.08

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Solution

The fourth proportional to 379,717.92, 523,892.34 and 252,415.08 is: 348,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,717.92 : 523,892.34 = 252,415.08 : x
  2. Step 2: Convert to fraction form
    379,717.92/523,892.34 = 252,415.08/x
  3. Step 3: Cross multiply
    379,717.92x = 523,892.34 × 252,415.08
  4. Step 4: Simplify right side
    379,717.92x = 132,238,326,912.49
  5. Step 5: Solve for x
    x = 132,238,326,912.49/379,717.92
  6. Step 6: Final answer
    x = 348,254.11

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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.