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Finding the Fourth Proportional to 528,212.76, 792,394.46 and 173,254.56

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Solution

The fourth proportional to 528,212.76, 792,394.46 and 173,254.56 is: 259,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,212.76 : 792,394.46 = 173,254.56 : x
  2. Step 2: Convert to fraction form
    528,212.76/792,394.46 = 173,254.56/x
  3. Step 3: Cross multiply
    528,212.76x = 792,394.46 × 173,254.56
  4. Step 4: Simplify right side
    528,212.76x = 137,285,953,513.74
  5. Step 5: Solve for x
    x = 137,285,953,513.74/528,212.76
  6. Step 6: Final answer
    x = 259,906.55

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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.