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Finding the Fourth Proportional to 307,676.66, 459,997.70 and 260,814.69

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Solution

The fourth proportional to 307,676.66, 459,997.70 and 260,814.69 is: 389,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,676.66 : 459,997.70 = 260,814.69 : x
  2. Step 2: Convert to fraction form
    307,676.66/459,997.70 = 260,814.69/x
  3. Step 3: Cross multiply
    307,676.66x = 459,997.70 × 260,814.69
  4. Step 4: Simplify right side
    307,676.66x = 119,974,156,222.14
  5. Step 5: Solve for x
    x = 119,974,156,222.14/307,676.66
  6. Step 6: Final answer
    x = 389,935.84

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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.