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Finding the Fourth Proportional to 366,916.65, 550,374.98 and 340,344.60

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Solution

The fourth proportional to 366,916.65, 550,374.98 and 340,344.60 is: 510,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,916.65 : 550,374.98 = 340,344.60 : x
  2. Step 2: Convert to fraction form
    366,916.65/550,374.98 = 340,344.60/x
  3. Step 3: Cross multiply
    366,916.65x = 550,374.98 × 340,344.60
  4. Step 4: Simplify right side
    366,916.65x = 187,317,150,716.39
  5. Step 5: Solve for x
    x = 187,317,150,716.39/366,916.65
  6. Step 6: Final answer
    x = 510,516.90

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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.