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Finding the Fourth Proportional to 629,722.60, 946,427.10 and 548,621.80

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Solution

The fourth proportional to 629,722.60, 946,427.10 and 548,621.80 is: 824,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,722.60 : 946,427.10 = 548,621.80 : x
  2. Step 2: Convert to fraction form
    629,722.60/946,427.10 = 548,621.80/x
  3. Step 3: Cross multiply
    629,722.60x = 946,427.10 × 548,621.80
  4. Step 4: Simplify right side
    629,722.60x = 519,230,539,170.78
  5. Step 5: Solve for x
    x = 519,230,539,170.78/629,722.60
  6. Step 6: Final answer
    x = 824,538.52

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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.