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Finding the Fourth Proportional to 326,011.92, 449,959.32 and 212,637.84

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Solution

The fourth proportional to 326,011.92, 449,959.32 and 212,637.84 is: 293,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,011.92 : 449,959.32 = 212,637.84 : x
  2. Step 2: Convert to fraction form
    326,011.92/449,959.32 = 212,637.84/x
  3. Step 3: Cross multiply
    326,011.92x = 449,959.32 × 212,637.84
  4. Step 4: Simplify right side
    326,011.92x = 95,678,377,892.67
  5. Step 5: Solve for x
    x = 95,678,377,892.67/326,011.92
  6. Step 6: Final answer
    x = 293,481.23

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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.