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Finding the Fourth Proportional to 326,587.84, 489,924 and 225,197.44

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Solution

The fourth proportional to 326,587.84, 489,924 and 225,197.44 is: 337,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,587.84 : 489,924 = 225,197.44 : x
  2. Step 2: Convert to fraction form
    326,587.84/489,924 = 225,197.44/x
  3. Step 3: Cross multiply
    326,587.84x = 489,924 × 225,197.44
  4. Step 4: Simplify right side
    326,587.84x = 110,329,630,594.56
  5. Step 5: Solve for x
    x = 110,329,630,594.56/326,587.84
  6. Step 6: Final answer
    x = 337,825.29

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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.