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Finding the Fourth Proportional to 452,427.40, 678,194.70 and 252,843.40

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Solution

The fourth proportional to 452,427.40, 678,194.70 and 252,843.40 is: 379,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,427.40 : 678,194.70 = 252,843.40 : x
  2. Step 2: Convert to fraction form
    452,427.40/678,194.70 = 252,843.40/x
  3. Step 3: Cross multiply
    452,427.40x = 678,194.70 × 252,843.40
  4. Step 4: Simplify right side
    452,427.40x = 171,477,053,809.98
  5. Step 5: Solve for x
    x = 171,477,053,809.98/452,427.40
  6. Step 6: Final answer
    x = 379,015.63

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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.