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Finding the Fourth Proportional to 595,489.61, 821,812.43 and 340,834.97

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Solution

The fourth proportional to 595,489.61, 821,812.43 and 340,834.97 is: 470,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,489.61 : 821,812.43 = 340,834.97 : x
  2. Step 2: Convert to fraction form
    595,489.61/821,812.43 = 340,834.97/x
  3. Step 3: Cross multiply
    595,489.61x = 821,812.43 × 340,834.97
  4. Step 4: Simplify right side
    595,489.61x = 280,102,414,924.68
  5. Step 5: Solve for x
    x = 280,102,414,924.68/595,489.61
  6. Step 6: Final answer
    x = 470,373.30

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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.