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Finding the Fourth Proportional to 469,249.20, 647,562.60 and 254,388.60

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Solution

The fourth proportional to 469,249.20, 647,562.60 and 254,388.60 is: 351,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,249.20 : 647,562.60 = 254,388.60 : x
  2. Step 2: Convert to fraction form
    469,249.20/647,562.60 = 254,388.60/x
  3. Step 3: Cross multiply
    469,249.20x = 647,562.60 × 254,388.60
  4. Step 4: Simplify right side
    469,249.20x = 164,732,543,226.36
  5. Step 5: Solve for x
    x = 164,732,543,226.36/469,249.20
  6. Step 6: Final answer
    x = 351,055.57

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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.