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Finding the Fourth Proportional to 518,481.86, 715,099.34 and 337,251.66

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Solution

The fourth proportional to 518,481.86, 715,099.34 and 337,251.66 is: 465,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,481.86 : 715,099.34 = 337,251.66 : x
  2. Step 2: Convert to fraction form
    518,481.86/715,099.34 = 337,251.66/x
  3. Step 3: Cross multiply
    518,481.86x = 715,099.34 × 337,251.66
  4. Step 4: Simplify right side
    518,481.86x = 241,168,439,479.90
  5. Step 5: Solve for x
    x = 241,168,439,479.90/518,481.86
  6. Step 6: Final answer
    x = 465,143.45

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1.5x scale

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.