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Finding the Fourth Proportional to 505,760.67, 697,998.01 and 276,352.84

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Solution

The fourth proportional to 505,760.67, 697,998.01 and 276,352.84 is: 381,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,760.67 : 697,998.01 = 276,352.84 : x
  2. Step 2: Convert to fraction form
    505,760.67/697,998.01 = 276,352.84/x
  3. Step 3: Cross multiply
    505,760.67x = 697,998.01 × 276,352.84
  4. Step 4: Simplify right side
    505,760.67x = 192,893,732,377.85
  5. Step 5: Solve for x
    x = 192,893,732,377.85/505,760.67
  6. Step 6: Final answer
    x = 381,393.30

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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.