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Finding the Fourth Proportional to 499,520.60, 689,401.56 and 327,583.25

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Solution

The fourth proportional to 499,520.60, 689,401.56 and 327,583.25 is: 452,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,520.60 : 689,401.56 = 327,583.25 : x
  2. Step 2: Convert to fraction form
    499,520.60/689,401.56 = 327,583.25/x
  3. Step 3: Cross multiply
    499,520.60x = 689,401.56 × 327,583.25
  4. Step 4: Simplify right side
    499,520.60x = 225,836,403,579.87
  5. Step 5: Solve for x
    x = 225,836,403,579.87/499,520.60
  6. Step 6: Final answer
    x = 452,106.29

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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.