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Finding the Fourth Proportional to 482,509.67, 723,770.67 and 127,520.63

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Solution

The fourth proportional to 482,509.67, 723,770.67 and 127,520.63 is: 191,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,509.67 : 723,770.67 = 127,520.63 : x
  2. Step 2: Convert to fraction form
    482,509.67/723,770.67 = 127,520.63/x
  3. Step 3: Cross multiply
    482,509.67x = 723,770.67 × 127,520.63
  4. Step 4: Simplify right side
    482,509.67x = 92,295,688,195.07
  5. Step 5: Solve for x
    x = 92,295,688,195.07/482,509.67
  6. Step 6: Final answer
    x = 191,282.57

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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.