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Finding the Fourth Proportional to 366,940.65, 550,410.98 and 340,368.60

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Solution

The fourth proportional to 366,940.65, 550,410.98 and 340,368.60 is: 510,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.65 : 550,410.98 = 340,368.60 : x
  2. Step 2: Convert to fraction form
    366,940.65/550,410.98 = 340,368.60/x
  3. Step 3: Cross multiply
    366,940.65x = 550,410.98 × 340,368.60
  4. Step 4: Simplify right side
    366,940.65x = 187,342,612,985.39
  5. Step 5: Solve for x
    x = 187,342,612,985.39/366,940.65
  6. Step 6: Final answer
    x = 510,552.90

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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.