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Finding the Fourth Proportional to 510,039.96, 764,360.10 and 322,716.12

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Solution

The fourth proportional to 510,039.96, 764,360.10 and 322,716.12 is: 483,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,039.96 : 764,360.10 = 322,716.12 : x
  2. Step 2: Convert to fraction form
    510,039.96/764,360.10 = 322,716.12/x
  3. Step 3: Cross multiply
    510,039.96x = 764,360.10 × 322,716.12
  4. Step 4: Simplify right side
    510,039.96x = 246,671,325,754.81
  5. Step 5: Solve for x
    x = 246,671,325,754.81/510,039.96
  6. Step 6: Final answer
    x = 483,631.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.