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Finding the Fourth Proportional to 288,635.93, 432,770.49 and 253,168.46

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Solution

The fourth proportional to 288,635.93, 432,770.49 and 253,168.46 is: 379,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,635.93 : 432,770.49 = 253,168.46 : x
  2. Step 2: Convert to fraction form
    288,635.93/432,770.49 = 253,168.46/x
  3. Step 3: Cross multiply
    288,635.93x = 432,770.49 × 253,168.46
  4. Step 4: Simplify right side
    288,635.93x = 109,563,836,322.89
  5. Step 5: Solve for x
    x = 109,563,836,322.89/288,635.93
  6. Step 6: Final answer
    x = 379,591.82

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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.