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Finding the Fourth Proportional to 581,086.56, 801,812.16 and 326,388.96

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Solution

The fourth proportional to 581,086.56, 801,812.16 and 326,388.96 is: 450,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,086.56 : 801,812.16 = 326,388.96 : x
  2. Step 2: Convert to fraction form
    581,086.56/801,812.16 = 326,388.96/x
  3. Step 3: Cross multiply
    581,086.56x = 801,812.16 × 326,388.96
  4. Step 4: Simplify right side
    581,086.56x = 261,702,637,017.75
  5. Step 5: Solve for x
    x = 261,702,637,017.75/581,086.56
  6. Step 6: Final answer
    x = 450,367.73

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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.