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Finding the Fourth Proportional to 303,385.50, 418,672.17 and 169,249.50

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Solution

The fourth proportional to 303,385.50, 418,672.17 and 169,249.50 is: 233,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,385.50 : 418,672.17 = 169,249.50 : x
  2. Step 2: Convert to fraction form
    303,385.50/418,672.17 = 169,249.50/x
  3. Step 3: Cross multiply
    303,385.50x = 418,672.17 × 169,249.50
  4. Step 4: Simplify right side
    303,385.50x = 70,860,055,436.42
  5. Step 5: Solve for x
    x = 70,860,055,436.42/303,385.50
  6. Step 6: Final answer
    x = 233,564.41

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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.