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Finding the Fourth Proportional to 322,343.46, 444,690.90 and 214,808.76

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Solution

The fourth proportional to 322,343.46, 444,690.90 and 214,808.76 is: 296,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,343.46 : 444,690.90 = 214,808.76 : x
  2. Step 2: Convert to fraction form
    322,343.46/444,690.90 = 214,808.76/x
  3. Step 3: Cross multiply
    322,343.46x = 444,690.90 × 214,808.76
  4. Step 4: Simplify right side
    322,343.46x = 95,523,500,812.28
  5. Step 5: Solve for x
    x = 95,523,500,812.28/322,343.46
  6. Step 6: Final answer
    x = 296,340.74

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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.