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Finding the Fourth Proportional to 852,249.84, 1,278,945 and 353,613.84

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Solution

The fourth proportional to 852,249.84, 1,278,945 and 353,613.84 is: 530,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,249.84 : 1,278,945 = 353,613.84 : x
  2. Step 2: Convert to fraction form
    852,249.84/1,278,945 = 353,613.84/x
  3. Step 3: Cross multiply
    852,249.84x = 1,278,945 × 353,613.84
  4. Step 4: Simplify right side
    852,249.84x = 452,252,652,598.80
  5. Step 5: Solve for x
    x = 452,252,652,598.80/852,249.84
  6. Step 6: Final answer
    x = 530,657.36

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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.