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Finding the Fourth Proportional to 505,812.45, 698,013.01 and 276,364.83

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Solution

The fourth proportional to 505,812.45, 698,013.01 and 276,364.83 is: 381,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,812.45 : 698,013.01 = 276,364.83 : x
  2. Step 2: Convert to fraction form
    505,812.45/698,013.01 = 276,364.83/x
  3. Step 3: Cross multiply
    505,812.45x = 698,013.01 × 276,364.83
  4. Step 4: Simplify right side
    505,812.45x = 192,906,246,846.44
  5. Step 5: Solve for x
    x = 192,906,246,846.44/505,812.45
  6. Step 6: Final answer
    x = 381,379.00

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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.