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Finding the Fourth Proportional to 589,169.96, 813,089.39 and 443,719.20

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Solution

The fourth proportional to 589,169.96, 813,089.39 and 443,719.20 is: 612,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,169.96 : 813,089.39 = 443,719.20 : x
  2. Step 2: Convert to fraction form
    589,169.96/813,089.39 = 443,719.20/x
  3. Step 3: Cross multiply
    589,169.96x = 813,089.39 × 443,719.20
  4. Step 4: Simplify right side
    589,169.96x = 360,783,373,659.29
  5. Step 5: Solve for x
    x = 360,783,373,659.29/589,169.96
  6. Step 6: Final answer
    x = 612,358.74

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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.