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Finding the Fourth Proportional to 518,634.88, 777,641.28 and 237,800.32

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Solution

The fourth proportional to 518,634.88, 777,641.28 and 237,800.32 is: 356,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,634.88 : 777,641.28 = 237,800.32 : x
  2. Step 2: Convert to fraction form
    518,634.88/777,641.28 = 237,800.32/x
  3. Step 3: Cross multiply
    518,634.88x = 777,641.28 × 237,800.32
  4. Step 4: Simplify right side
    518,634.88x = 184,923,345,229.21
  5. Step 5: Solve for x
    x = 184,923,345,229.21/518,634.88
  6. Step 6: Final answer
    x = 356,557.86

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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.