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Finding the Fourth Proportional to 595,619.96, 821,958.90 and 323,690.12

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Solution

The fourth proportional to 595,619.96, 821,958.90 and 323,690.12 is: 446,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,619.96 : 821,958.90 = 323,690.12 : x
  2. Step 2: Convert to fraction form
    595,619.96/821,958.90 = 323,690.12/x
  3. Step 3: Cross multiply
    595,619.96x = 821,958.90 × 323,690.12
  4. Step 4: Simplify right side
    595,619.96x = 266,059,974,976.07
  5. Step 5: Solve for x
    x = 266,059,974,976.07/595,619.96
  6. Step 6: Final answer
    x = 446,694.19

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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.