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Finding the Fourth Proportional to 531,990.48, 734,146.56 and 341,003.73

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Solution

The fourth proportional to 531,990.48, 734,146.56 and 341,003.73 is: 470,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,990.48 : 734,146.56 = 341,003.73 : x
  2. Step 2: Convert to fraction form
    531,990.48/734,146.56 = 341,003.73/x
  3. Step 3: Cross multiply
    531,990.48x = 734,146.56 × 341,003.73
  4. Step 4: Simplify right side
    531,990.48x = 250,346,715,326.67
  5. Step 5: Solve for x
    x = 250,346,715,326.67/531,990.48
  6. Step 6: Final answer
    x = 470,584.95

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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.