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Finding the Fourth Proportional to 838,992.78, 1,257,792.45 and 333,241.74

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Solution

The fourth proportional to 838,992.78, 1,257,792.45 and 333,241.74 is: 499,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,992.78 : 1,257,792.45 = 333,241.74 : x
  2. Step 2: Convert to fraction form
    838,992.78/1,257,792.45 = 333,241.74/x
  3. Step 3: Cross multiply
    838,992.78x = 1,257,792.45 × 333,241.74
  4. Step 4: Simplify right side
    838,992.78x = 419,148,944,596.86
  5. Step 5: Solve for x
    x = 419,148,944,596.86/838,992.78
  6. Step 6: Final answer
    x = 499,585.88

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1.5x scale

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.