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Finding the Fourth Proportional to 442,591.29, 662,765.88 and 274,440.05

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Solution

The fourth proportional to 442,591.29, 662,765.88 and 274,440.05 is: 410,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,591.29 : 662,765.88 = 274,440.05 : x
  2. Step 2: Convert to fraction form
    442,591.29/662,765.88 = 274,440.05/x
  3. Step 3: Cross multiply
    442,591.29x = 662,765.88 × 274,440.05
  4. Step 4: Simplify right side
    442,591.29x = 181,889,497,931.67
  5. Step 5: Solve for x
    x = 181,889,497,931.67/442,591.29
  6. Step 6: Final answer
    x = 410,964.93

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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.