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Finding the Fourth Proportional to 505,891.84, 698,129.27 and 276,450.54

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Solution

The fourth proportional to 505,891.84, 698,129.27 and 276,450.54 is: 381,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,891.84 : 698,129.27 = 276,450.54 : x
  2. Step 2: Convert to fraction form
    505,891.84/698,129.27 = 276,450.54/x
  3. Step 3: Cross multiply
    505,891.84x = 698,129.27 × 276,450.54
  4. Step 4: Simplify right side
    505,891.84x = 192,998,211,495.28
  5. Step 5: Solve for x
    x = 192,998,211,495.28/505,891.84
  6. Step 6: Final answer
    x = 381,500.94

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1.5x scale

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.