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Finding the Fourth Proportional to 372,930.73, 514,509.46 and 243,942.77

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Solution

The fourth proportional to 372,930.73, 514,509.46 and 243,942.77 is: 336,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,930.73 : 514,509.46 = 243,942.77 : x
  2. Step 2: Convert to fraction form
    372,930.73/514,509.46 = 243,942.77/x
  3. Step 3: Cross multiply
    372,930.73x = 514,509.46 × 243,942.77
  4. Step 4: Simplify right side
    372,930.73x = 125,510,863,540.02
  5. Step 5: Solve for x
    x = 125,510,863,540.02/372,930.73
  6. Step 6: Final answer
    x = 336,552.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.