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Finding the Fourth Proportional to 613,037.39, 919,688.43 and 186,606.56

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Solution

The fourth proportional to 613,037.39, 919,688.43 and 186,606.56 is: 279,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,037.39 : 919,688.43 = 186,606.56 : x
  2. Step 2: Convert to fraction form
    613,037.39/919,688.43 = 186,606.56/x
  3. Step 3: Cross multiply
    613,037.39x = 919,688.43 × 186,606.56
  4. Step 4: Simplify right side
    613,037.39x = 171,619,890,295.43
  5. Step 5: Solve for x
    x = 171,619,890,295.43/613,037.39
  6. Step 6: Final answer
    x = 279,950.12

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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.