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Finding the Fourth Proportional to 326,057.76, 488,364 and 250,622.40

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Solution

The fourth proportional to 326,057.76, 488,364 and 250,622.40 is: 375,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,057.76 : 488,364 = 250,622.40 : x
  2. Step 2: Convert to fraction form
    326,057.76/488,364 = 250,622.40/x
  3. Step 3: Cross multiply
    326,057.76x = 488,364 × 250,622.40
  4. Step 4: Simplify right side
    326,057.76x = 122,394,957,753.60
  5. Step 5: Solve for x
    x = 122,394,957,753.60/326,057.76
  6. Step 6: Final answer
    x = 375,378.15

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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.